D-Galactopyranosyl-β-D-thiogalactopyranoside - ≥98% , CAS No.51555-87-4

CAS: 51555-87-4 Cat. No.: D343351 Molecular Weight: 358.36
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanyloxane-3,4,5-triol | Thiodigalactoside | Tdg cpd | D-Galactopyranosylthio-β-D-galactopyranoside | β-D-Galactopyranosyl 1-thio-β-D-galactopyranoside |
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25mg
D343351-25mg
3
$39.90
100mg
D343351-100mg
2
$99.90
250mg
D343351-250mg
2
$199.90
1g
D343351-1g
1
$499.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

D-Galactopyranosyl-β- D-thiogalactopyranoside (Thiodigalactoside) is a compound belonging to the dihexoses (disaccharides containing two hexose carbohydrates). Thiodigalactoside is known to target galectin-1, heat-labile enterotoxin b chain, neurocan core protein, and lactose permease.|D-Galactopyranosyl-β- D-thiogalactopyranoside is often used to study galectins, a family of glycan-binding lectins with diverse regulatory roles in physiological processes. Galectins have significant roles in inflammation and cancer. Thiodigalactoside is a diglycan that binds galectins-1, -3, -8, and -9 with Kd values between 24 and 78 μM. It is used to investigate the roles of these galectins in cell signaling and carcinogenesis.

Specifications

Synonyms
(2R, 3R, 4S, 5R, 6S)-2-(hydroxymethyl)-6-[(2S, 3R, 4S, 5R, 6R)-3, 4, 5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanyloxane-3, 4, 5-triol | Thiodigalactoside | Tdg cpd | D-Galactopyranosylthio-β-D-galactopyranoside | β-D-Galactopyranosyl 1-thio-β-D-galactopyranoside |
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
Thiodigalactoside (TDG)is a potent inhibitor of galectin-1 (GAL1) that suppress tumor growth by inhibiting multiple cancer enhancing activities of galectin-1, including immune cell dysregulation, angiogenesis and protection against oxidative stress. Thiod
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
INHIBITOR
Purity
≥98%
Product Properties
pKapKₐ: 12.63 (Predicted)
Names and Identifiers
Pubchem Sid504756806
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504756806
Canonical SmilesC(C1C(C(C(C(O1)SC2C(C(C(C(O2)CO)O)O)O)O)O)O)O
IUPAC Name(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]sulfanyloxane-3,4,5-triol
InChIKeySYKYBMOFPMXDRQ-ZFDCCPEWSA-N
INCHI1S/C12H22O10S/c13-1-3-5(15)7(17)9(19)11(21-3)23-12-10(20)8(18)6(16)4(2-14)22-12/h3-20H,1-2H2/t3-,4-,5+,6+,7+,8+,9-,10-,11+,12+/m1/s1
Isomeric SMILES C([C@@H]1[C@@H]([C@@H]([C@H]([C@@H](O1)S[C@H]2[C@@H]([C@H]([C@H]([C@H](O2)CO)O)O)O)O)O)O)O
Molecular Weight 358.36
Reaxy-Rn 11730146
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=11730146&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic oxygen compounds
ClassOrganooxygen compounds
SubclassCarbohydrates and carbohydrate conjugates
Intermediate Tree Nodes Glycosyl compounds
Direct ParentThioglycosides
Alternative Parents Thio-linked disaccharides  Oxanes  Monothioacetals  Secondary alcohols  Sulfenyl compounds  Polyols  Oxacyclic compounds  Primary alcohols  Hydrocarbon derivatives  
Molecular FrameworkAliphatic heteromonocyclic compounds
Substituents Thio-linked disaccharide - S-glycosyl compound - Disaccharide - Oxane - Monothioacetal - Secondary alcohol - Oxacycle - Organoheterocyclic compound - Sulfenyl compound - Polyol - Hydrocarbon derivative - Primary alcohol - Organosulfur compound - Alcohol - Aliphatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as thioglycosides. These are glycoside in which a sugar group is bonded through one carbon to another group via a S-glycosidic bond.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
LGALS1 Tchem Galectin-1 (387 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
LGALS9 Tchem Galectin-9 (186 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
LGALS8 Tchem Galectin-8 (303 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
LGALS7 Tbio Galectin-7 (120 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
LGALS2 Tbio Galectin-2 (56 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Lgals3 Galectin-3 (98 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

14 results found

Lot NumberCertificate TypeDateItem
A2604344Certificate of AnalysisDec 17, 2025 D343351
A2604360Certificate of AnalysisDec 17, 2025 D343351
A2604365Certificate of AnalysisDec 17, 2025 D343351
H2206674Certificate of AnalysisMay 12, 2025 D343351
H2206675Certificate of AnalysisMay 12, 2025 D343351
H2206676Certificate of AnalysisMay 12, 2025 D343351
E2512216Certificate of AnalysisMar 20, 2025 D343351
E2512217Certificate of AnalysisMar 20, 2025 D343351
E2512218Certificate of AnalysisMar 20, 2025 D343351
E2512233Certificate of AnalysisMar 20, 2025 D343351
G2403567Certificate of AnalysisMay 23, 2024 D343351
G2403568Certificate of AnalysisMay 23, 2024 D343351
G2403569Certificate of AnalysisMay 23, 2024 D343351
H2206800Certificate of AnalysisJun 25, 2022 D343351

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Chemical and Physical Properties
Solubility≥35.8 mg/mL in H2O; insoluble in EtOH; ≥52.5 mg/mL in DMSO
Refractive Indexn20D~1.69 (Predicted)
Boil Point(°C)~712.6° C at 760 mmHg (Predicted)
Melt Point(°C)229-235° C
Molecular Weight358.360 g/mol
XLogP3-3.400
Hydrogen Bond Donor Count8
Hydrogen Bond Acceptor Count11
Rotatable Bond Count4
Exact Mass358.093 Da
Monoisotopic Mass358.093 Da
Topological Polar Surface Area206.000 Ų
Heavy Atom Count23
Formal Charge0
Complexity353.000
Isotope Atom Count0
Defined Atom Stereocenter Count10
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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