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Pharmacopeial Impurities (EP / USP / BP)

Azathioprine EP Impurity G

Reference StandardAvailable on request

Order Azathioprine EP Impurity G (CAS 5581-52-2) online at Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Azathioprine EP Impurity G chemical structure
CAS number5581-52-2
FormulaC9H8N8O2S
Molar mass292.28 g/mol
Physical formSolid
HS code38229090
InChIKeyYFTWHEBLORWGNI-UHFFFAOYSA-N
IUPAC name6-(3-methyl-5-nitroimidazol-4-yl)sulfanyl-7H-purin-2-amine

About Azathioprine EP Impurity G

Azathioprine EP Impurity G is supplied by Zemixal as a characterised reference material for Azathioprine analysis. Key data (Reference Standard): CAS 5581-52-2, formula C9H8N8O2S and molar mass 292.28 g/mol. It is handled as a solid.

Use cases we see most often

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Handling and storage

Classified under GHS with signal word Warning and hazard statements H302, H341, H351 and H361. Read the SDS before first use.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Each lot travels with 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 Azathioprine

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

Azathioprine standards

Typical uses

  • Pharmacopeial method verification
  • Impurity profiling
  • QC release testing
  • ANDA / DMF filings

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Azathioprine EP Impurity G
Product nameAzathioprine EP Impurity G
Catalogue numberZX-019922
CAS number5581-52-2
IUPAC name6-(3-methyl-5-nitroimidazol-4-yl)sulfanyl-7H-purin-2-amine
Molecular formulaC9H8N8O2S
Molar mass292.28 g/mol
Exact mass292.0491
GradeReference Standard
Physical formSolid
XLogP3-0.2
H-bond donors / acceptors2 / 8
Topological polar surface area169 Ų
HS code38229090
InChIKeyYFTWHEBLORWGNI-UHFFFAOYSA-N
SMILESCN1C=NC(=C1SC2=NC(=NC3=C2NC=N3)N)[N+](=O)[O-]
PubChem CID3379405
SynonymsAzathioprine - Impurity G, Azathioprine impurity G, Tiamiprine, Tiamiprin, 6-((1-Methyl-4-nitro-1H-imidazol-5-yl)thio)-1H-purin-2-amine, Aminoazathioprin, Imidazolylthioguanine, BW 57-323H, 1H-Purin-2-amine, 6-((1-methyl-4-nitro-1H-imidazol-5-yl)thio)-, 2-Amino-6-[(1-methyl-4-nitroimidazol-5-yl)thio]purine, Purine, 2-amino-6-(1-methyl-4-nitro-5-imidazolylthio)-, 6-[(1-Methyl-4-nitro-1H-imidazol-5-yl)thio]-9H-purin-2-amine

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
GHS08 Health hazard
Health hazard

Signal word Warning

  • H302Harmful if swallowed
  • H341Suspected of causing genetic defects
  • H351Suspected of causing cancer
  • H361Suspected of damaging fertility or the unborn child
  • H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements P203, P260, P264, P270, P280, P301 + P317, P318, P319, P330, 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 Azathioprine EP Impurity G
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 Azathioprine EP Impurity G

Which CAS number identifies Azathioprine EP Impurity G?
Azathioprine EP Impurity G is registered under CAS 5581-52-2. You may also see it listed as Azathioprine - Impurity G, Azathioprine impurity G, Tiamiprine. Our catalogue number for this item is ZX-019922.
What are the formula and molar mass of Azathioprine EP Impurity G?
For Azathioprine EP Impurity G, its formula is C9H8N8O2S and its molar mass is 292.28 g/mol. The systematic (IUPAC) name is 6-(3-methyl-5-nitroimidazol-4-yl)sulfanyl-7H-purin-2-amine. InChIKey YFTWHEBLORWGNI-UHFFFAOYSA-N lets you match it in any structure database.
How is Azathioprine EP Impurity G used in pharmaceutical QC?
Azathioprine EP Impurity G is a characterised reference material linked to Azathioprine. 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 Azathioprine EP Impurity G?
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 Azathioprine EP Impurity G?
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 Azathioprine EP Impurity G to my country?
Yes. Because Azathioprine EP Impurity G 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.

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