An Introduction to Research-Grade Carbohydrates: Decoding the “Glycan Language” and a Product-Selection Guide (with Tables 1–3)

1) What are “research-grade carbohydrates”?

In a research context, “carbohydrates” is more commonly discussed using the related terms saccharides / glycans. In glycobiology, glycan is often used to refer specifically to the oligo-/polysaccharide portion of glycoconjugates (e.g., on glycoproteins and glycolipids). The IUPAC “generic” definition of carbohydrates is particularly important: it includes not only monosaccharides, oligosaccharides, and polysaccharides, but also a broad range of derivatives obtained from monosaccharides via reduction, oxidation, and substitution (e.g., amino, deoxy, thiol substitutions, etc.).

In this article, “research-grade carbohydrates” are not the “dietary sugars” discussed in nutrition. Instead, they are used for:

• Biology/biomedicine: glycosylation, glycan recognition, extracellular matrix (ECM), immunity and infection, etc.
• Analytical chemistry: glycomics, monosaccharide composition, quantification, and structural elucidation
• Synthesis & materials: sugar building blocks, glycosylation reactions, polysaccharide modification, hydrogels/delivery materials

2) Why discuss research-grade carbohydrates?

• Glycoscience studies the structures and functions of glycans. A National Academies report clearly points out that glycans/carbohydrates play central roles in biological processes and have major potential in applications spanning medicine, energy, and materials.

• NIH’s Essentials of Glycobiology summarizes the field as encompassing: carbohydrate chemistry, enzymology of glycan biosynthesis/degradation, protein recognition of glycans, and the technologies to analyze and manipulate glycans.

• Take-home message: Genes (DNA) write the “letters” → proteins execute “machine-like functions” → glycans act more like “barcodes/languages on the surface and at interaction interfaces,” shaping recognition, adhesion, signaling, and the microenvironment. (Glycan information is often not linear and is highly dependent on fine structural details.)

3) Why are sugars “hard”? Because there are “too many structural branches”

Why does a single “glucose” become so complex once extended into a glycan? There are four core reasons:

• Stereochemistry (D/L) and ring forms: monosaccharides often exist as cyclic structures, and stereochemistry strongly affects subsequent reactions and recognition.
• Anomers (α/β): different anomeric configurations of the same monosaccharide change glycosidic linkage patterns and biological recognition.
• Multiple linkage positions (1→2/1→3/1→4/1→6…): the same two monosaccharides connected differently are different molecules.
• Branching: unlike the commonly “linear backbones” of DNA/proteins, branching causes a combinatorial explosion in possible structures.

Summary: This also explains why, for research-grade carbohydrate products, structural confirmation, isomeric purity, and batch-to-batch consistency are critically important.

4) Research scenario map: a “scenario → product family” navigation

Typical research scenario	Problem to solve	Product families to prioritize	Common techniques/keywords
Monosaccharide composition/quantification (QC, glycomics sample prep)	“Which monosaccharides are in the sample, and how much?”	Monosaccharide/derivative standards (monosaccharides, amino sugars, deoxy sugars, sugar acids, sugar alcohols, etc.) + (optional) isotope internal standards	HPAEC-PAD (often no derivatization needed) + acid hydrolysis/enzymatic digestion; or derivatization followed by LC/GC
N-/O-glycan detection and quantification	“Glycans are diverse—how can we make them measurable?”	Glycan labeling reagents/kits (2-AB/2-AA/others) + (common sample prep) release/digest enzymes (e.g., N-glycan release)	Reducing-end labeling via reductive amination; HILIC-FLR/UPLC;
Glycan release/digestion and “structural validation” (key glycomics sample prep)	“Release glycans first; then use enzyme ‘scissors’ to validate structures”	PNGase F / Endo H / exoglycosidases (sialidase, galactosidase, fucosidase, etc., as needed)	N-glycan release; distinguishing high-mannose/hybrid vs complex types; exoglycosidase sequencing
Cell-surface glycan imaging/enrichment (live cells)	“Light up” or “pull down” glycans in living cells	Metabolic labeling sugars (azido/alkyne; e.g., Ac4ManNAz/GalNAz/GlcNAz, etc.) + click probes (fluorophore/biotin, etc.); note: optimize dose–time windows and include viability/phenotype controls	MOE/metabolic oligosaccharide engineering; azido/alkyne sugars; bioorthogonal; CuAAC vs SPAAC (DBCO/BCN, etc.)
Glycan–protein recognition (lectins/antibodies/receptors)	“Who recognizes whom? What are affinity and specificity?”	Defined oligosaccharides/glycan libraries; glycan probes; (high-throughput) probes for glycan arrays/microarrays	Lectins / glycan-binding proteins; glycan microarray; competition binding / multivalency effects
Glycan enrichment/capture (common glycoproteomics/glycomics workflows)	“How to enrich low-abundance glycoproteins/glycopeptides first?”	Lectin tools; glycan-capture probes / magnetic-bead systems	Lectin enrichment; glycopeptide enrichment; affinity capture
ECM/materials/delivery (hydrogels, adhesion, lubrication)	“Need tunable viscoelasticity and biocompatible matrices”	Polysaccharide materials (HA, dextran… expandable to alginate/chitosan/heparin, etc.) + modification/crosslinking derivatives	Hyaluronan / dextran; polysaccharide modification (e.g., methacrylation) and crosslinking; hydrogel/viscoelasticity
Synthetic glyco-chemistry / glyco-drugs / glycoconjugate vaccines (chemical assembly)	“Assemble sugars with defined linkage sites/anomeric configuration”	Glycosylation building blocks (protected sugars, glycosyl donors/acceptors, defined oligosaccharide fragments)	Protecting-group strategies; glycosyl donors/acceptors; stereoselectivity (α/β)
In vitro enzymatic synthesis / glycan extension (common alternative/complement to chemical routes)	“Use enzymes to ‘add sugars’ and extend glycans with higher selectivity”	Glycosyltransferases + activated sugar donors (nucleotide sugars: UDP-/GDP-/CMP-sugars)	Glycosyltransferase; donors such as UDP-GlcNAc / GDP-Fuc / CMP-sialic acid; in vitro glycan remodeling

Notes:

• N-glycans: PNGase F is commonly used, but core α1–3 fucose in plants/insects can reduce PNGase F compatibility; consider alternatives such as PNGase A depending on the system.
• O-glycans: there is no “universal O-glycanase.” Commonly used approaches include (reductive) β-elimination for chemical release, or enzymes targeting specific core structures.

5) Product classification

First layer: product “family tree” by use case

Product family tree	Typical products	Main research tasks addressed
1) Standards + Internal standards (IS)	Mono-/di-/oligosaccharides; sugar alcohols, sugar acids, deoxy sugars, amino sugars; isotope-labeled IS	Quantification, method development, QC, recovery correction
2) Labeling & derivatization	Reducing-end labels (2-AB/2-AA); labeling kits; MS-friendly tags (procainamide, RapiFluor-MS, etc.)	“Make glycans measurable”: improve separation and detection sensitivity (FLR/LC-MS)
3) Metabolic labeling (live-cell tracing)	Azido/alkyne sugars (ManNAz/GalNAz/GlcNAz, etc.); click probes (fluorophore/biotin/enrichment)	Live-cell glycan imaging, enrichment, chemical proteomics
4) Glycan probes & binding tools	Defined oligosaccharide/glycan probes; lectins/glycan-binding protein tools; (high-throughput) glycan arrays/lectin array systems	Glycan–protein interactions, specificity profiling, screening and validation
5) Polysaccharides & biomaterials	HA, dextran (extendable: alginate/chitosan, etc.); modification and crosslinking derivatives	ECM mimics, hydrogels, delivery, adhesion/lubrication/tissue engineering
6) Building blocks	Protected monosaccharides; glycosyl donors/acceptors; oligosaccharide fragments with linkers (for probes/conjugation)	Chemical synthesis, customized anomer/linkage sites, glyco-drugs/glycoconjugate vaccines
7) Enzymes + activated donors	PNGase F/Endo H/exoglycosidases; glycosyltransferases; nucleotide sugars (UDP-/GDP-/CMP-sugars)	Glycan release, structural validation (enzymatic sequencing), enzymatic extension/remodeling

Second layer: “selection parameters” for each family

Family scope	Selection parameters	Why it matters
Standards / IS	Structure: D/L, α/β, linkage position, mixed isomers or not; quantification: assay value assignment method, isotope-labeling positions	Glycans have many isomers; quantitative work fails most often when “the standard is wrong or poorly defined”
Labeling / derivatization	Reaction mechanism (e.g., reductive amination), LC/FLR/MS compatibility, need for cleanup, risk of derivatization byproducts	Stronger signals can also introduce extra peaks and recovery loss
Metabolic labeling	Cell/system compatibility, toxicity and culture conditions, CuAAC vs SPAAC, controls for background labeling	Live-cell work is most vulnerable to copper toxicity and nonspecific background
Probes / binding tools	Monovalent vs multivalent presentation, linker length, labeling site, array-platform compatibility	Glycan–protein recognition depends heavily on presentation and multivalency
Polysaccharide materials	Molecular weight (Mw/Mn), PDI, degree of substitution (DS), viscosity/gel behavior, source/batch consistency, endotoxin (if for cells)	“Same name, different product” often comes from MW/DS/batch differences
Building blocks	Orthogonality of protecting groups, donor/acceptor reactivity, stereocontrol strategy, purity/water content	Glycan synthesis is highly sensitive to water and mismatched protecting-group schemes
Enzymes + activated donors	Enzyme substrate scope/conditions (pH, metal ions, detergent tolerance, etc.), donor purity and stability	Structural validation and enzymatic synthesis depend on “enzyme selectivity + donor quality”

6) “Key knowledge box”: the two most commonly used routes

Route	Goal	Common methodology	Corresponding product families (priority)
Route A: “Measure sugars” (analytical chemistry mainline)	Turn complex samples into quantifiable signals	Monosaccharide composition: HPAEC-PAD (often with acid hydrolysis/enzymatic digestion; many cases need no derivatization); glycan detection: reducing-end labeling (2-AB/2-AA, etc.) + HILIC-FLR/UPLC-FLR or LC-MS	Monosaccharide/derivative standards (optionally with isotope IS); glycan labeling reagents/kits; (optional) release/digest enzymes
Route B: “Light up / pull down sugars” (cell & chemical biology mainline)	Localize/enrich “which glycans are where” in cells	MOE (metabolic oligosaccharide engineering): azido/alkyne sugars enter glycan biosynthesis; bioorthogonal (click) reactions enable imaging or enrichment	Metabolic labeling sugars (azido/alkyne sugars); click probes (fluorophore/biotin/enrichment)

Note: HPAEC-PAD = High-Performance Anion-Exchange Chromatography with Pulsed Amperometric Detection

7) Navigation table | Research-grade carbohydrate product selection: what experiment → which table to check

Typical research scenario/task	Which table to check first	Why this table fits best	Common keywords/examples
Carbon source or control sugars for cell culture/fermentation (mono-/di-/oligosaccharides)	Table 1 Basic sugars/sugar alcohols/oligosaccharides	Table 1 concentrates the most commonly used sugars that can be directly added to systems—useful for media formulation, controls, sugar-profile standards, and basic validation	D-glucose, fructose, galactose, ribose, arabinose; lactose/sucrose; raffinose/stachyose
Osmolality adjustment; cryopreservation/lyophilization protection; protein/cell stabilization (protectants/excipients)	Table 1 Basic sugars/sugar alcohols/oligosaccharides (and Table 3 polysaccharides if needed)	Sugar alcohols and classic protective sugars are mainly in Table 1; if you need higher viscoelasticity/gelation or encapsulation/delivery, move to Table 3 for polysaccharide materials	Trehalose; mannitol/sorbitol/erythritol/xylitol; sucrose; (advanced: sodium alginate, hyaluronic acid gels)
Carbohydrate metabolism/energy metabolism (glycolysis/PPP, etc.), or enzyme substrates/metabolic intermediate standards	Table 2 Metabolism & glycobiology tools	Table 2 focuses on sugar phosphates and diphosphate intermediates that directly report metabolic pathways—ideal for enzymology, pathway reconstruction, and quantitative standards	G6P, F6P, F1P, F1,6BP, G1P, R5P, DHAP; 2-DG
In vitro enzymology for glycosylation/glycan synthesis (glycosyltransferase substrates), or pathway reconstruction	Table 2 Metabolism & glycobiology tools	Table 2 includes key nucleotide-sugar donors (UDP-sugars, UDPGA, CMP-sialic acids), forming the core “donor substrate library” for glycosyltransferase reactions	UDP-Glc, UDP-Gal, UDP-GlcNAc, UDP-GalNAc, UDPGA; CMP-sialic acids
Sialylation / terminal cell-surface glycan structures (receptor binding, glycoimmunology, glycomics controls)	Table 2 Metabolism & glycobiology tools	Table 2 contains Neu5Ac/Neu5Gc, ManNAc, and CMP-sialic acid donors—covering monomers and donors for “terminal sialylation”	Neu5Ac, Neu5Gc, ManNAc; CMP-sialic acid
Metabolic labeling / click-chemistry imaging or enrichment (live-cell glycan tracing)	Table 2 Metabolism & glycobiology tools	Protected azido sugars in Table 2 can enter cells and participate in glycan biosynthesis; click chemistry then enables imaging/enrichment—your “tracing toolbox”	Ac4ManNAz; peracetylated azido-GlcNAc; peracetylated azido-GalNAc
Bacterial cell wall/peptidoglycan research (immune recognition, biosynthetic pathways, standards/controls)	Table 2 Metabolism & glycobiology tools	Table 2 includes key monomers such as MurNAc (N-acetylmuramic acid), suitable for bacterial cell-wall mechanisms and method development	N-acetylmuramic acid (MurNAc/NAMA)
Polysaccharide gels/encapsulation/3D culture/tissue engineering materials (gelation, viscoelasticity, crosslinking)	Table 3 Polysaccharides/materials/ECM-GAG	Table 3 concentrates polysaccharides and ECM components that form gels and function as materials—ideal for hydrogels, microspheres, scaffolds, sustained release, and ECM mimicry	Sodium alginate/alginate; chitosan; hyaluronic acid (sodium salt); agarose; carrageenan; xanthan gum
ECM/GAG/anticoagulation-related biomaterials and interaction studies	Table 3 Polysaccharides/materials/ECM-GAG (some mechanistic substrates are in Table 2)	Table 3 includes GAG materials such as HA, heparin/LMWH, chondroitin sulfate, dermatan sulfate, keratan sulfate; for donor/monomer-level mechanisms, return to Table 2	Hyaluronic acid/sodium hyaluronate; heparin/LMWH; chondroitin sulfate; low-MW dermatan sulfate; keratan sulfate
Density gradients / particle–cell separation / macromolecular crowding or solution-property models	Table 3 Polysaccharides/materials/ECM-GAG	Table 3 includes inert polymers (e.g., polysucrose/Ficoll) and polysaccharide systems for separation media and crowding models	Polysucrose 400 (Ficoll 400); (with) dextran/β-glucan, etc.
Solubilization/inclusion/delivery of hydrophobic small molecules (host–guest, formulation)	Table 3 Polysaccharides/materials/ECM-GAG	Cyclodextrins and derivatives are concentrated in Table 3 and are common choices for solubilization and inclusion complexation	α/β/γ-cyclodextrin; hydroxypropyl-β-cyclodextrin (HP-β-CD)
Colloids/rheology/thickening and stabilization (formulation development, viscosity control)	Table 3 Polysaccharides/materials/ECM-GAG (basic control sugars in Table 1)	Thickening/gel-forming polysaccharides in Table 3 can strongly tune rheology; if you only need basic osmotic or sugar controls, use Table 1	CMC (carboxymethyl cellulose), xanthan gum, carrageenan, pectin, starch, maltodextrin, inulin

Table 1 | Basic sugars / sugar alcohols / oligosaccharides (culture carbon sources, osmolality control, protectants, analytical controls)

Category	CAS No.	Aladdin Cat. No.	Name	Specification / Purity	Product features & applications
Monosaccharide (carbon source / glycobiology)	50-69-1	R104826	D-Ribose	For plant cell culture, ≥99% (HPLC)	A pentose sugar; used as a carbon source in cell culture, as a precursor for nucleoside/nucleic acid research and synthesis, and for carbohydrate metabolism studies and analytical standards/controls.
Monosaccharide / deoxy sugar (nucleic acid chemistry / metabolic probe)	533-67-5	D104784	2-Deoxy-D-ribose	≥98%	Deoxyribose monomer; used in nucleoside/nucleic-acid-related synthesis and metabolism studies, and as a glycan profiling/analytical standard.
Monosaccharide (carbon source / glycobiology)	50-99-7	D432810	D-(+)-Glucose	Anhydrous grade, PharmPure™, USP, BP, Ph.Eur., ACS, pharmaceutical grade	The most widely used carbon source and reference sugar; for cell culture/fermentation, metabolic studies, buffers/formulations, and quantitative analytical controls.
Monosaccharide (carbon source / glycobiology)	57-48-7	F108335	D-Fructose	For cell culture, ≥99%	Common carbon source; used in metabolism research, fermentation/cell culture formulations, and as a standard control for carbohydrate analysis/separation.
Monosaccharide (carbon source / glycobiology)	59-23-4	G100369	D-(+)-Galactose	For cell culture, for insect cell culture, ≥99%	Common carbon source and glycobiology substrate; used for carbohydrate metabolism studies, glycan composition controls, media formulations, and method-development standards.
Monosaccharide (carbon source / glycobiology)	5328-37-0	L432840	L-(+)-Arabinose	Natural	A pentose sugar; used for sugar metabolism/glycan composition controls. Also widely used in molecular biology as an inducer in arabinose-inducible expression systems and related culture formulations.
Monosaccharide (carbon source / glycobiology)	3458-28-4	M113093	D-(+)-Mannose	Moligand™, for cell culture, ≥99%	A key monosaccharide in glycans and glycosylation; used in mannose-related metabolism, glycoprotein/high-mannose structure studies, and as a supplement in cell culture.
Monosaccharide (carbon source / glycobiology)	58-86-6	D433007	D-(+)-Xylose	Moligand™, natural, ≥99%	A pentose sugar; used for carbohydrate profiling controls and metabolic studies; also a commonly cited key monosaccharide in studies of the proteoglycan linkage region.
Monosaccharide (carbon source / glycobiology)	2438-80-4	F110930	L-Fucose	Moligand™, ≥98%	A key monosaccharide for fucosylation; used in glycan structure studies (including immunity/adhesion contexts), glycan profiling controls, and culture supplementation.
Disaccharide / low-degree oligosaccharide (standard / substrate)	63-42-3	L103493	Lactose, anhydrous	PharmPure™, USP, JP, Ph.Eur., NF	Classic disaccharide; commonly used as an excipient/filler and for lyophilization protection, and as a substrate/control in lactase/β-galactosidase-related experiments.
Disaccharide / low-degree oligosaccharide (standard / substrate)	57-50-1	S432966	Sucrose (sucrose)	PharmPure™, JP, BP, Ph.Eur., NF, pharmaceutical grade	Common stabilizer for osmolality control and lyophilization protection; a classic disaccharide for protein/cell protection, density-gradient work, and formulation studies.
Disaccharide / low-degree oligosaccharide (protectant / standard)	99-20-7	D110019	D-Trehalose, anhydrous	≥99%	Trehalose: a classic bioprotectant/stress-protective sugar; used for protein/cell stabilization, freeze-drying/freezing protection, and osmolality/stress-model studies.
Disaccharide / low-degree oligosaccharide (structural control / substrate)	499-40-1	I120961	Isomaltose	≥98%, mixture of isomers	An α-1,6-linked disaccharide model; used for carbohydrate structural controls, enzymatic substrates (e.g., relevant glycosidases), and method development for analytical separation.
Disaccharide / low-degree oligosaccharide (functional sugar / standard)	4618-18-2	L104550	Lactulose	≥98%	Lactose-derived disaccharide; used in functional oligosaccharide/gut-related research, as an analytical standard control, and in formulation-system studies.
Disaccharide / low-degree oligosaccharide (standard / substrate)	528-50-7	C111867	Cellobiose	Analytical standard	Key disaccharide standard for cellulose degradation; used to assay cellulase/β-glucosidase activity, and for glycan profiling and quantitative controls.
Disaccharide / low-degree oligosaccharide (standard / substrate)	1109-28-0	M106948	Maltotriose	Analytical standard	A trisaccharide standard relevant to starch/maltodextrin; used to monitor amylase/saccharification systems, and for HPLC/HPAEC quantification and method validation.
Oligosaccharide (oligosaccharide / standard)	512-69-6	R413236	Raffinose	≥98%	Trisaccharide; used for oligosaccharide analysis/standard controls, osmoprotection, and structure–function studies in carbohydrates.
Oligosaccharide (oligosaccharide / standard)	54261-98-2	S120981	Stachyose hydrate	≥98%	Tetrasaccharide; used as an oligosaccharide standard, for method development in glycan profiling, and in functional oligosaccharide research.
Oligosaccharide (oligosaccharide / standard)	470-55-3	S353428	Stachyose	≥70%	Functional oligosaccharide, “mixture/grade” level; used in formulation/fermentation and oligosaccharide-related studies, as well as method development and controls (purity grade suitable for process/application exploration).
Sugar alcohol / cyclitol (osmolality / protectant)	69-65-8	M119324	Mannitol	For plant cell culture, ≥99%	Common osmolality regulator and protectant; used in plant tissue culture, lyophilization/freezing protection, and stabilization of proteins and formulations.
Sugar alcohol / cyclitol (osmolality / protectant)	50-70-4	S104840	D-Sorbitol	For plant cell culture	Common osmotic regulator and stabilizer; used in plant/microbial culture, protein/enzyme stabilization, formulation humectancy, and antifreeze systems.
Sugar alcohol (osmolality / protectant)	149-32-6	E105712	meso-Erythritol	≥99%	Low-molecular-weight sugar alcohol; commonly used in osmolality/stabilization systems and in crystallization/phase-behavior studies; can also serve as a metabolic/control component.
Sugar alcohol / cyclitol (osmolality / protectant)	87-99-0	X434315	Xylitol	Pharmaceutical grade	Sugar-alcohol stabilizing/humectant component; can be used for osmolality control and as a formulation excipient, and for sugar-alcohol metabolism and control studies.
Sugar alcohol / cyclitol (osmolality / protectant)	87-89-8	M486130	Inositol	PharmPure™, USP, pharmaceutical grade, NF	Common nutrient supplement in cell culture (myo-inositol is typical); involved in phospholipid signaling pathways (e.g., PIP₂/PIP₃). Used in media formulation and signaling research.

Table 2 | Metabolism & glycobiology tools (sugar acids / sugar phosphates / amino sugars / sialic acids / nucleotide sugars / metabolic labeling)

Category	CAS No.	Aladdin Cat. No.	Name	Specification / Purity	Product features & applications
Chemical reporter sugar (metabolic labeling / click chemistry)	361154-30-5	T303546	N-Azidoacetylmannosamine, tetraacylated (Ac4ManNAz)	≥98%, α and β isomer mixture	Cell-permeable azido-sugar precursor; deprotected intracellularly and incorporated into glycans, enabling downstream click labeling/imaging/enrichment (commonly used in the sialic-acid pathway).
Chemical reporter sugar (metabolic labeling / click chemistry)	98924-81-3	N355747	1,3,4,6-Tetra-O-acetyl-N-azidoacetylglucosamine	≥98%	Cell-permeable precursor of azido-GlcNAc (peracetyl-protected); used for intracellular glycosylation/glycan metabolic labeling and click-reaction detection.
Chemical reporter sugar (metabolic labeling / click chemistry)	653600-56-7	T304292	1,3,4,6-Tetra-O-acetyl-2-[(azidoacetyl)amino]-2-deoxy-β-D-galactopyranose	≥98%	Azido-GalNAc derivative (protected precursor); commonly used for chemical labeling and click-enrichment of O-GalNAc glycosylation/glycan metabolism.
Sugar nucleotide / glycosyl donor (glycosylation / enzymology)	528-04-1	U614637	UDP N-acetyl-glucosamine	Moligand™	UDP-GlcNAc: a key donor substrate for many glycosyltransferases and glycan biosynthesis; commonly used in O-GlcNAc/N-glycosylation enzymology, pathway reconstitution, and standards/controls.
Sugar nucleotide / glycosyl donor (glycosylation / enzymology)	108320-87-2	U341495	UDP-N-acetyl-D-galactosamine disodium salt	≥98%	UDP-GalNAc: donor substrate for GalNAc transfer; used for GalNAc-T glycosyltransferase studies, in vitro glycan synthesis, and method development.
Sugar nucleotide / glycosyl donor (glycosylation / enzymology)	137868-52-1	U303352	UDP-Galactose disodium salt	≥95%	UDP-Gal: donor substrate for galactosyl transfer; used as a glycosyltransferase substrate, for in vitro glycan synthesis, and in glycomics methods.
Sugar nucleotide / glycosyl donor (glycosylation / enzymology)	28053-08-9	U303319	Uridine diphosphate glucose disodium salt (UDP-Glc)	≥98%	UDP-Glc: a broadly used donor substrate across many glycosyltransferases; used in glycosylation enzymology, in vitro glycan/polysaccharide synthesis, and controls.
Sugar nucleotide / glycosyl donor (UGT / detoxification metabolism)	63700-19-6	U304241	Uridine diphosphate glucuronic acid trisodium salt (UDPGA)	≥98%	UDPGA: donor substrate for glucuronidation (UGT) reactions; used in drug metabolism/detoxification pathways, UGT enzymology, and standards/controls.
Activated sialic-acid donor (glycosylation / enzymology)	3063-71-6	C350394	Cytidine 5′-monophosphate N-acetylneuraminic acid disodium salt	≥85%	CMP-sialic acid (commonly representing CMP-Neu5Ac donors): activated donor substrate for sialyltransferases; used in in vitro sialylation enzymology and glycan extension.
Amino sugar and derivatives	66-84-2	G119456	D-(+)-Glucosamine hydrochloride	For cell culture, ≥99%	Amino-sugar monomer; used in glycosaminoglycan/proteoglycan research, cartilage/ECM experiments, glycosylation pathways, and substrate supplementation.
Amino sugar and derivatives	7512-17-6	A118965	N-Acetyl-D-glucosamine (GlcNAc)	For cell culture, ≥98%	GlcNAc monomer; used in chitin/bacterial cell wall research, glycosylation and hexosamine pathways, analytical controls, and culture supplementation.
Amino sugar and derivatives (glycan/metabolic precursor)	7772-94-3	N131005	N-Acetyl-D-mannosamine (ManNAc)	≥98%	ManNAc: a classic precursor for sialic-acid biosynthesis; used to increase/modulate cell-surface sialylation, glyco-metabolic engineering, and glycan studies.
Amino sugar and derivatives (glycan/metabolism)	14215-68-0	A111905	N-Acetyl-D-galactosamine, hydrate (GalNAc)	≥98%	GalNAc: core monomer for O-linked glycosylation; used in glycan synthesis/analysis, cellular glycosylation pathway studies, and culture supplementation.
Sialic acid and derivatives (glycan termini)	131-48-6	A100555	N-Acetylneuraminic acid (Neu5Ac)	≥98%	Neu5Ac: a common “terminal cap” on cell-surface glycans; used in glycan structure/receptor interactions, glycomics standards, and enzymatic substrates.
Sialic acid and derivatives (glycan termini)	1113-83-3	G115995	N-Glycolylneuraminic acid (Neu5Gc)	≥95% (HPLC)	Neu5Gc: common in non-human primates; can appear in humans via exogenous uptake; used in glycoimmunology, receptor binding, and glycomics controls.
Bacterial cell-wall-related sugar (peptidoglycan monomer)	10597-89-4	H113966	N-Acetylmuramic acid (NAMA)	≥97%	MurNAc: core monomer in bacterial peptidoglycan; used in bacterial cell wall biosynthesis/immune-recognition studies and analytical controls.
Sugar acid / lactone / salt (pH / chelation / precursor)	527-07-1	G104995	Sodium D-gluconate	Pharmaceutical grade, PharmPure™	Mild chelating/complexing agent and formulation stabilizer; used in buffering/stabilization systems, controlling metal-ion effects, and in pharmaceutical/cell-system additives.
Sugar acid / lactone / salt (pH / chelation / precursor)	90-80-2	G106880	D-(+)-Glucono-δ-lactone (GDL)	PharmPure™, USP	A slow-release acidifier (slowly hydrolyzes to gluconic acid); used for gentle pH adjustment and, with Ca²⁺/alginate systems, for controllable gelation.
Sugar acid / lactone / salt (pH / chelation / precursor)	6556-12-3	G105701	D-Glucuronic acid	Moligand™, ≥98%	Key uronic acid (sugar acid) monomer; used in glucuronidation/detox metabolism research, GAG/polysaccharide synthesis-related experiments, and analytical controls.
Sugar acid / uronic acid (polysaccharide monomer / standard)	91510-62-2	D115556	D-(+)-Galacturonic acid monohydrate	≥97%	Key monomer in pectin backbones; used in pectin/plant polysaccharide research, enzymology (pectin lyase/hydrolase), and analytical standards.
Sugar acid / uronic acid (GAG/glycan monomer)	2073-35-0	L709969	L-Iduronic acid	≥98%	Important uronic-acid monomer (a key component in certain GAG structures); used in heparin/dermatan sulfate structural studies, oligosaccharide synthesis, and analytical controls.
Sugar acid / diacid (analysis / materials precursor)	87-73-0	D304817	Glucaric acid	≥98%	Glucaric acid: a dicarboxylic sugar derivative; used for metal complexation/material monomers, and as a metabolic/analytical control.
Monosaccharide / deoxy sugar (metabolic probe)	154-17-6	D109194	2-Deoxy-D-glucose (2-DG)	≥98%	Classic glucose analog; commonly used for glucose uptake/carbohydrate metabolism studies and to perturb glycolysis (as a metabolic probe/inhibitory tool).
Sugar phosphate (metabolic intermediate / enzymatic substrate)	81028-91-3	F111877	D-Fructose-1,6-bisphosphate trisodium salt, octahydrate	≥98%	Key glycolytic intermediate; used in aldolase and related enzyme systems, pathway reconstruction, analytical standards, and method validation.
Sugar phosphate (metabolic intermediate / enzymatic substrate)	3671-99-6	G111174	D-Glucose-6-phosphate disodium salt, hydrate	≥98%	G6P: central node in glycolysis and the pentose phosphate pathway; used for G6PD and other enzymatic assays, metabolic studies, and standards/controls.
Sugar phosphate (metabolic intermediate / enzymatic substrate)	26177-86-6	F113774	D-Fructose-6-phosphate disodium salt, hydrate	≥95%	F6P: key intermediate in glycolysis/gluconeogenesis; used in phosphoglucose isomerase assays and as a standard.
Sugar phosphate (metabolic intermediate / enzymatic substrate)	71662-09-4	D350748	D-Fructose-1-phosphate disodium salt	≥90%	F1P: key intermediate in fructose metabolism; used in metabolic pathway studies, related enzymatic assays, and standards/controls.
Sugar phosphate (metabolic intermediate / enzymatic substrate)	56401-20-8	D353054	α-D-Glucose-1-phosphate disodium salt, hydrate	≥98%	G1P: key intermediate for glycogen/starch metabolism and sugar nucleotide biosynthesis; used in phosphoglucomutase assays and metabolic studies.
Sugar phosphate (metabolic intermediate / enzymatic substrate)	57-04-5	D693314	Dihydroxyacetone phosphate, hemimagnesium salt, hydrate	≥95%	DHAP: key intermediate linking glycolysis and lipid synthesis; used in aldolase and glycerol-metabolism enzymology and metabolic network studies.
Sugar phosphate (metabolic intermediate / enzymatic substrate)	18265-46-8	R141013	D-Ribose-5-phosphate disodium salt	≥85%	R5P: key intermediate in the pentose phosphate pathway and nucleotide biosynthesis; used in metabolic studies, enzymology related to nucleotide biosynthesis, and as a standard.

Table 3 | Polysaccharides / materials / ECM-GAG (gels, separation media, extracellular matrix, sulfated polysaccharides, inclusion/solubilization)

Category	CAS No.	Aladdin Cat. No.	Name	Specification / Purity	Product features & applications
Polysaccharide (thickening/gelation/materials)	9012-76-4	C105802	Chitosan	Medium viscosity, 200–400 mPa·s	Cationic polysaccharide (deacetylated chitin); widely used for hydrogels/films, drug/nucleic acid delivery carriers, tissue engineering, and adsorption/separation. Typically dissolved in dilute acid before use.
Polysaccharide (thickening/gelation/materials)	9005-38-3	A434499	Sodium alginate (from brown algae)	Medium viscosity	Anionic polysaccharide; rapidly crosslinks with divalent ions such as Ca²⁺ to form gels; used for cell/enzyme encapsulation, microspheres/hydrogels, 3D culture, and controlled-release systems.
Polysaccharide (thickening/gelation/materials)	9005-32-7	A110571	Alginate (alginic acid)	Pharmaceutical grade, PharmPure™	Acid form of alginate; commonly used as a raw material to prepare alginate salts/gel materials; used in controlled release, wound dressings, colloids, and materials research.
Polysaccharide (thickening/gelation/materials)	9004-32-4	C104986	Sodium carboxymethyl cellulose (CMC)	Viscosity: 1000–1400 mPa·s, USP grade	Water-soluble cellulose derivative for thickening/stabilization/suspension; used for rheology control, colloid stabilization, tablet/sustained-release excipients, and method-development controls.
Polysaccharide (thickening/gelation/materials)	9004-34-6	C434462	Cellulose	Microcrystalline powder	Insoluble structural polysaccharide; used in materials/suspension systems, as a substrate for cellulase/biomass conversion, and as a formulation filler and method-development control.
Polysaccharide (thickening/gelation/materials)	9004-54-0	D490149	Dextran	Superior grade	Neutral polysaccharide (often used in biocompatible polymer systems); used for protein/cell protection and stabilization, hydrophilic polymer model systems, separation, and conjugation carriers.
Polysaccharide (thickening/gelation/materials)	9012-36-6	A434542	Agarose	Extra high EEO	Gel-matrix material; used for electrophoresis/separation and gel casting. EEO (electroendosmosis) affects electrophoretic behavior; select according to experimental needs.
Polysaccharide (thickening/gelation/materials)	9000-07-1	C107615	Carrageenan	Reagent grade	Sulfated polysaccharide with strong gelation/thickening; used in colloid and food/material model systems, and as a material for viscosity and gel-behavior studies.
Polysaccharide (thickening/gelation/materials)	11138-66-2	G104873	Xanthan gum	PharmPure™, USP	Microbial polysaccharide thickener; used for rheology and suspension stability, colloid model systems, hydrogels, and formulation viscosity control.
Polysaccharide (thickening/gelation/materials)	9000-69-5	P112756	Pectin	Galacturonic acid (dry basis) ≥74.0%	Plant cell wall polysaccharide; used in gels/colloid systems, pectinase-related enzymology, and plant polysaccharide structure–function studies.
Polysaccharide (thickening/gelation/materials)	1398-61-4	C104157	Chitin	Practical grade	Structural polysaccharide; used as a substrate for chitinase and related enzymology, for materials/adsorption research, and as a key raw material for chitosan preparation.
Polysaccharide (thickening/gelation/materials)	9005-25-8	S116028	Corn starch	Pharmaceutical grade, PharmPure™	Natural polysaccharide; widely used as an excipient for filling/forming/thickening; also used as a substrate in amylase/saccharification processes and as a method-development material.
Polysaccharide (thickening/gelation/materials)	9005-80-5	I111088	Inulin	Biochemical reagent	A fructan polysaccharide; used in polysaccharide models and fermentation/enzymology studies, and also as a classic inert polysaccharide in renal-function research (methodological background).
Polysaccharide (thickening/gelation/materials)	9050-36-6	M434571	Maltodextrin	Dextrose equivalent 5.0–8.0	Mixture of starch hydrolysates; commonly used as a carrier/filler/stabilizer, and as a carbon source and model material for polysaccharide/oligosaccharide systems.
Polysaccharide (film-forming/thickening/carrier)	9057-02-7	P121048	Pullulan	_	Pullulan: neutral, water-soluble polysaccharide with strong film-forming ability; used for drug/food carriers, film materials, and studies of polysaccharide solution properties and methodologies.
Polysaccharide (β-glucan / immunity & materials)	9041-22-9	G140186	β-D-Glucan (from barley)	≥95%	β-Glucan model polysaccharide; used in immunity-related research (β-glucan recognition/pathways), materials/viscosity systems, and polysaccharide structure–function studies.
Polysaccharide (brown-algae β-glucan / model)	9008-22-4	L103298	Laminarin (from brown algae)	_	Brown-algae polysaccharide (commonly used as a model for brown-algae polysaccharides/β-glucans); suitable for exploratory studies of structure–function, immunity, and materials applications.
Polysaccharide (storage / model)	9005-79-2	G111730	Glycogen	≥85% (dry basis)	Animal storage polysaccharide; used for glycogen metabolism studies, as an enzymatic substrate (e.g., glycogen phosphorylase), and as a model/control in polysaccharide systems.
Inert polysaccharide polymer (density gradient / separation medium)	26873-85-8	P122394	Polysucrose 400	Powder, average MW: 400K	Inert hydrophilic polymer (often used as density-gradient/separation media for cells/particles); also used for macromolecular crowding effects and solution-property studies.
Cyclodextrin (inclusion / solubilization)	10016-20-3	C106778	α-Cyclodextrin	For cell culture, ≥98%	Small-cavity inclusion host; used for inclusion complexation to solubilize hydrophobic small molecules, stabilization/controlled release, host–guest chemistry, and method development.
Cyclodextrin (inclusion / solubilization)	7585-39-9	C118530	β-Cyclodextrin	For cell culture, ≥98%	One of the most widely used cyclodextrins; used for solubilization, taste masking/stabilization, inclusion complex preparation, and formulation research (commonly used in cell/biochemical systems).
Cyclodextrin (inclusion / solubilization)	17465-86-0	C103967	γ-Cyclodextrin	For cell culture, ≥98%	Larger cavity; better suited for inclusion of bulkier hydrophobic guest molecules; used for solubilization, delivery, and host–guest system studies.
Cyclodextrin (inclusion / solubilization)	128446-35-5	C485578	Cyclodextrin HPB	PharmPure™, USP	Hydroxypropyl-β-cyclodextrin (HP-β-CD) with improved water solubility; commonly used for solubilizing hydrophobic drugs, delivery, and formulation studies; suitable for cell/biochemical systems.
ECM/GAG & sulfated polysaccharides (ECM/anticoagulation/model)	9067-32-7	S774025	Sodium hyaluronate	Pharmaceutical grade	Hyaluronic acid salt (HA); key ECM component; used in cell adhesion/migration, CD44-related research, hydrogels, and viscoelasticity modeling.
ECM/GAG & sulfated polysaccharides (ECM/anticoagulation/model)	9004-61-9	H131007	Hyaluronic acid	Moligand™, from chicken comb	Native HA material; used in ECM/hydrogels, cell adhesion/migration, and tissue-repair models; source information supports source-consistency controls.
ECM/GAG & sulfated polysaccharides (ECM/anticoagulation/model)	9011-18-1	D110733	Dextran sulfate sodium salt (DSS)	MW 500,000; DNase/RNase/protease-free	Strongly anionic sulfated polysaccharide; classically used to induce colitis models in animals; also used for polyanion interaction studies and method development.
ECM/GAG & sulfated polysaccharides (ECM/cartilage)	9007-28-7	C107703	Chondroitin sulfate sodium salt (shark)	≥95%	Chondroitin sulfate; used in ECM/cartilage research, biomaterials, and protein-binding experiments; source information supports batch/source consistency controls.
ECM/GAG & sulfated polysaccharides (ECM/cartilage)	9082-07-9	C304949	Chondroitin sulfate sodium salt	≥95%	Common GAG material; used for ECM mimics, regulating cell behavior, gel/scaffold materials, and interaction studies.
ECM/GAG & sulfated polysaccharides (ECM/model)	54328-33-5	D758996	Low-molecular-weight dermatan sulfate	≥95% (HPLC), MW: 8,000–13,000	Low-MW dermatan sulfate; used in ECM/coagulation-related interactions, protein-binding studies, and biomaterial functionalization (MW supports better controllability).
ECM/GAG & sulfated polysaccharides (ECM/anticoagulation/model)	9056-36-4	K758595	Keratan sulfate	Moligand™, ≥90%	Sulfated glycosaminoglycan (keratan sulfate); used in ECM/corneal research, protein binding, sulfated-polysaccharide interaction experiments, and enzymology/method development.
ECM/GAG & sulfated polysaccharides (ECM/anticoagulation/model)	9050-30-0	H304938	Heparin sodium sulfate (acetylated heparin sulfate)	Potency ≥50 IU/mg	Sulfated GAG-type material; commonly used in coagulation/anticoagulation assays, heparin-binding protein interaction studies, surface modification, and biomaterial functionalization.
ECM/GAG & sulfated polysaccharides (ECM/anticoagulation/model)	9041-08-1	H284091	Dalteparin sodium	Moligand™, anti-Xa activity 110–210 IU/mg	Low-molecular-weight heparin (LMWH) anticoagulant material; used in coagulation/anti-Xa assays, heparin-binding interactions, and biomaterial surface modification.
ECM/GAG & sulfated polysaccharides (anticoagulation/model)	9005-49-6	H1423211	Heparin	_	Highly sulfated GAG; classic material for coagulation/anticoagulation and heparin-binding protein interaction studies; also used for surface modification and biological model systems.

Note: The products listed above are representative Aladdin offerings. For additional specifications, please refer to the product list at the end of the article or search the Aladdin website by product name/CAS number.

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