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API Impurities

7-Methylguanine

Reference StandardAvailable on request

Buy 7-Methylguanine (CAS 578-76-7) from Zemixal. Request a quote with price, lead time and documents. Part of our API Impurities range.

Pack sizes
7-Methylguanine chemical structure
CAS number578-76-7
FormulaC6H7N5O
Molar mass165.15 g/mol
Physical formSolid
HS code38229090
InChIKeyFZWGECJQACGGTI-UHFFFAOYSA-N
IUPAC name2-amino-7-methyl-1H-purin-6-one

About 7-Methylguanine

7-Methylguanine is supplied by Zemixal as a characterised reference material for Guanine analysis. Identity at a glance (Reference Standard): CAS 578-76-7, formula C6H7N5O and molar mass 165.15 g/mol. It is handled as a solid.

Use cases we see most often

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Handling and storage

Classified under GHS with signal word Warning and hazard statements H315, H319 and H335. Read the SDS before first use.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Every shipment includes a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Guanine

See every impurity, metabolite and related compound we list for this API.

Guanine standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of 7-Methylguanine
Product name7-Methylguanine
Catalogue numberZX-045935
CAS number578-76-7
IUPAC name2-amino-7-methyl-1H-purin-6-one
Molecular formulaC6H7N5O
Molar mass165.15 g/mol
Exact mass165.0651
GradeReference Standard
Physical formSolid
XLogP3-1.1
H-bond donors / acceptors2 / 3
Topological polar surface area85.3 Ų
HS code38229090
InChIKeyFZWGECJQACGGTI-UHFFFAOYSA-N
SMILESCN1C=NC2=C1C(=O)NC(=N2)N
PubChem CID135398679
SynonymsN7-Methylguanine, 2-Amino-7-methylhypoxanthine, 6H-Purin-6-one, 2-amino-1,7-dihydro-7-methyl-, 2-amino-7-methyl-6,7-dihydro-3H-purin-6-one, N7-Me-G, 7-methyl-3H-purine-2,6-dione, 2-Amino-7-methyl-1H-purin-6(7H)-one, 2-Amino-7-methyl-1,7-dihydro-6H-purin-6-one, 2-amino-7-methyl-3H-purin-6-one, 2-Amino-1,7-dihydro-7-methyl-6H-purin-6-one, 2-Amino-6-hydroxy-7-methylpurine, 7-MeG

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • H315Causes skin irritation
  • H319Causes serious eye irritation
  • H335May cause respiratory irritation

Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of 7-Methylguanine
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 7-Methylguanine

Which CAS number identifies 7-Methylguanine?
7-Methylguanine is registered under CAS 578-76-7. You may also see it listed as N7-Methylguanine, 2-Amino-7-methylhypoxanthine, 6H-Purin-6-one, 2-amino-1,7-dihydro-7-methyl-. Our catalogue number for this item is ZX-045935.
What are the formula and molar mass of 7-Methylguanine?
For 7-Methylguanine, its formula is C6H7N5O and its molar mass is 165.15 g/mol. The systematic (IUPAC) name is 2-amino-7-methyl-1H-purin-6-one. InChIKey FZWGECJQACGGTI-UHFFFAOYSA-N lets you match it in any structure database.
How is 7-Methylguanine used in pharmaceutical QC?
7-Methylguanine is a characterised reference material linked to Guanine. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for 7-Methylguanine?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with 7-Methylguanine?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship 7-Methylguanine to my country?
Yes. Because 7-Methylguanine is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

More Guanine standards

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