Guanine - Moligand™, ≥99% , CAS No.73-40-5

CAS: 73-40-5 Cat. No.: G104274 Formula: C5H5N5O Molecular Weight: 151.13 Beilstein Registry Number: 9680 EC Number: 200-799-8
AVAILABLE TO ORDER
GRADE & PURITY Moligand™ ? Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools. ≥99%
Synonyms
Guanine, 98% | AKOS000118904 | CI 75170 [INCI] | GUANINE [MI] | A15593 | GANCICLOVIR IMPURITY F (EP IMPURITY) | GUANINE [EP IMPURITY] | rac-tert-butyl N-[(1R,2R)-2-aminocyclohexyl]carbamate | GUANINE (USP IMPURITY) | GUANINE [INCI] | AC-4743 | Guanine (8C
Storage
Store at 2-8°C
Shipped In
Wet ice
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Size
Germany (EU)
USA*
Price
Qty
5g
G104274-5g
—
1 In stock
€8.59
25g
G104274-25g
Made to order · 8–12 wks
€12.93
100g
G104274-100g
—
3 In stock
€25.08
500g
G104274-500g
—
1 In stock
€79.75
Enter a quantity for the sizes you want to add.
🧪
Why this grade

Moligand™, ≥99% Moligand™ for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at 2-8°C Ships Wet ice Check lot-specific COA for exact specifications.

📋

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 125 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
Guanine, 98% | AKOS000118904 | CI 75170 [INCI] | GUANINE [MI] | A15593 | GANCICLOVIR IMPURITY F (EP IMPURITY) | GUANINE [EP IMPURITY] | rac-tert-butyl N-[(1R,2R)-2-aminocyclohexyl]carbamate | GUANINE (USP IMPURITY) | GUANINE [INCI] | AC-4743 | Guanine (8C
Specifications & Purity
Moligand™, ≥99%
Biochemical and Physiological Mechanisms
Nucleobase incorporated into nucleic acids, such as RNA and DNA. Purine derivative.
Storage
Store at 2-8°C
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Grade
Moligand™
Note
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour. Refer to SDS for further information Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
Purity
≥99%
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/504773234
Canonical Smiles
C1=NC2=C(N1)C(=O)NC(=N2)N
IUPAC Name
2-amino-1,7-dihydropurin-6-one
InChIKey
UYTPUPDQBNUYGX-UHFFFAOYSA-N
INCHI
1S/C5H5N5O/c6-5-9-3-2(4(11)10-5)7-1-8-3/h1H,(H4,6,7,8,9,10,11)
Isomeric SMILES
C1=NC2=C(N1)C(=O)NC(=N2)N
WGK Germany
3
RTECS
MF8260000
Molecular Weight
151.13
Beilstein
9680
Reaxy-Rn
9680
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=9680&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
SuperclassOrganoheterocyclic compounds
ClassImidazopyrimidines
SubclassPurines and purine derivatives
Intermediate Tree Nodes Not available
Direct ParentPurines and purine derivatives
Alternative Parents Hydroxypyrimidines  Imidazoles  Heteroaromatic compounds  Azacyclic compounds  Organopnictogen compounds  Organooxygen compounds  Organonitrogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteropolycyclic compounds
Substituents Purine - Hydroxypyrimidine - Pyrimidine - Heteroaromatic compound - Imidazole - Azole - Azacycle - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Aromatic heteropolycyclic compound
DescriptionThis compound belongs to the class of organic compounds known as purines and purine derivatives. These are aromatic heterocyclic compounds containing a purine moiety, which is formed a pyrimidine-ring ring fused to an imidazole ring.
External Descriptors a purine base - a purine
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
HPRT1 Tchem Hypoxanthine-guanine phosphoribosyltransferase (369 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
GDA Tbio Guanine deaminase (19 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
CCRF-CEM (65223 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Associated Targets(non-human)
Pnp Purine-nucleoside phosphorylase (70 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Pnp Purine nucleoside phosphorylase (4 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Plasmodium falciparum (966862 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mus musculus (284745 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Vero (26788 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Ricin (144 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
folK 2-amino-4-hydroxy-6-hydroxymethyldihydropteridine pyrophosphokinase (110 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.

27 results found

Lot NumberCertificate TypeDateItem
H2627752Certificate of AnalysisAug 13, 2026 G104274
H2627732Certificate of AnalysisAug 13, 2026 G104274
H2627727Certificate of AnalysisAug 13, 2026 G104274
E2508237Certificate of AnalysisApr 12, 2025 G104274
E2508238Certificate of AnalysisApr 12, 2025 G104274
E2508239Certificate of AnalysisApr 12, 2025 G104274
E2508240Certificate of AnalysisApr 12, 2025 G104274
G2614069Certificate of AnalysisApr 12, 2025 G104274
G2601116Certificate of AnalysisApr 12, 2025 G104274
L2404470Certificate of AnalysisNov 15, 2024 G104274
L2404469Certificate of AnalysisNov 15, 2024 G104274
L2404468Certificate of AnalysisNov 15, 2024 G104274
L2404467Certificate of AnalysisNov 15, 2024 G104274
F2424239Certificate of AnalysisApr 19, 2024 G104274
F2424241Certificate of AnalysisApr 19, 2024 G104274
F2424240Certificate of AnalysisApr 19, 2024 G104274
F2424231Certificate of AnalysisApr 19, 2024 G104274
F2415151Certificate of AnalysisMar 23, 2024 G104274
A2405488Certificate of AnalysisDec 26, 2023 G104274
A2405491Certificate of AnalysisDec 26, 2023 G104274
A2405490Certificate of AnalysisDec 26, 2023 G104274
A2405489Certificate of AnalysisDec 26, 2023 G104274
E2207032Certificate of AnalysisMar 01, 2022 G104274
E2207031Certificate of AnalysisMar 01, 2022 G104274
J2327265Certificate of AnalysisMar 01, 2022 G104274
K2309057Certificate of AnalysisMar 01, 2022 G104274
E2207026Certificate of AnalysisMar 01, 2022 G104274
Chemical and Physical Properties
Solubilitynsoluble in water. Soluble in ammonia-water, KOH solutions, dilute acids, and 1 N NaOH (0.1M).
Melt Point(°C)360°C
Molecular Weight151.130 g/mol
XLogP3-1.100
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count3
Rotatable Bond Count0
Exact Mass151.049 Da
Monoisotopic Mass151.049 Da
Topological Polar Surface Area96.200 Ų
Heavy Atom Count11
Formal Charge0
Complexity225.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

What is the purity of this product?
This product is supplied at ≥99% purity (chemical assay). Lot-specific values are stated on the Certificate of Analysis.
What is Moligand??
Moligand? is one of Aladdin Scientific's premium product lines, formulated for high-purity applications across multiple workflows. Compared to standard grades in the same workflow, Moligand? products typically offer tighter specifications, more rigorous QC, and stronger lot-to-lot consistency.
How should this product be stored?
Store at 2–8 °C. Refrigerated storage is required to maintain the specified shelf life.
How is this product shipped?
This product ships chilled on wet ice. Unpack on arrival and transfer it to the storage condition stated above.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 73-40-5, the molecular formula is C5H5N5O, and the molecular weight is 151.13 g/mol. InChIKey UYTPUPDQBNUYGX-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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