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Pharmacopeial Impurities (EP / USP / BP)

Cimetidine EP Impurity B

Reference StandardAvailable on request

Cimetidine EP Impurity B (CAS 138035-55-9) supplier Zemixal. Request a quote with price, lead time and documents. Catalogue no. ZX-020214.

Pack sizes
Cimetidine EP Impurity B chemical structure
CAS number138035-55-9
FormulaC10H15N5OS
Molar mass253.33 g/mol
Physical formSolid
HS code38229090
InChIKeyZYULTRKNQVUZNL-UHFFFAOYSA-N
IUPAC namemethyl N-cyano-N'-[2-[(5-methyl-1H-imidazol-4-yl)methylsulfanyl]ethyl]carbamimidate

About Cimetidine EP Impurity B

Cimetidine EP Impurity B belongs to the Cimetidine reference-standard family in the Zemixal catalogue. Key data (Reference Standard): CAS 138035-55-9, formula C10H15N5OS and molar mass 253.33 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

Safe handling

Classified under GHS with signal word Warning and hazard statements H361. 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. Each lot travels with a certificate of analysis with characterisation data. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Cimetidine

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

Cimetidine 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 Cimetidine EP Impurity B
Product nameCimetidine EP Impurity B
Catalogue numberZX-020214
CAS number138035-55-9
IUPAC namemethyl N-cyano-N'-[2-[(5-methyl-1H-imidazol-4-yl)methylsulfanyl]ethyl]carbamimidate
Molecular formulaC10H15N5OS
Molar mass253.33 g/mol
Exact mass253.0997
GradeReference Standard
Physical formSolid
XLogP30.8
H-bond donors / acceptors2 / 5
Topological polar surface area111 Ų
HS code38229090
InChIKeyZYULTRKNQVUZNL-UHFFFAOYSA-N
SMILESCC1=C(N=CN1)CSCCN=C(NC#N)OC
PubChem CID129318324
SynonymsCimetidine Hydrochloride - Impurity B, 3-Cyano-2-methyl-1-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulphanyl]ethyl]isourea, methyl N'-cyano-N-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)carbamimidate, Cimetidine Impurity 13, 3-Cyano-2-methyl-1-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulfanyl]ethyl]isourea, methyl (Z)-N'-cyano-N-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)carbamimidate, methyl N'-cyano-N-[2-[(5-methyl-1H-imidazol-4-yl)methylsulfanyl]ethyl]carbamimidate

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

Safety and GHS hazards

GHS08 Health hazard
Health hazard

Signal word Warning

  • H361Suspected of damaging fertility or the unborn child

Precautionary statements P203, P280, P318, 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 Cimetidine EP Impurity B
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 Cimetidine EP Impurity B

Which CAS number identifies Cimetidine EP Impurity B?
Cimetidine EP Impurity B is registered under CAS 138035-55-9. You may also see it listed as Cimetidine Hydrochloride - Impurity B, 3-Cyano-2-methyl-1-[2-[[(5-methyl-1H-imidazol-4-yl)methyl]sulphanyl]ethyl]isourea, methyl N'-cyano-N-(2-(((5-methyl-1H-imidazol-4-yl)methyl)thio)ethyl)carbamimidate. Our catalogue number for this item is ZX-020214.
What are the formula and molar mass of Cimetidine EP Impurity B?
For Cimetidine EP Impurity B, its formula is C10H15N5OS and its molar mass is 253.33 g/mol. The systematic (IUPAC) name is methyl N-cyano-N'-[2-[(5-methyl-1H-imidazol-4-yl)methylsulfanyl]ethyl]carbamimidate. InChIKey ZYULTRKNQVUZNL-UHFFFAOYSA-N lets you match it in any structure database.
How is Cimetidine EP Impurity B used in pharmaceutical QC?
Cimetidine EP Impurity B is a characterised reference material linked to Cimetidine. 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 Cimetidine EP Impurity B?
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 Cimetidine EP Impurity B?
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 Cimetidine EP Impurity B to my country?
Yes. Because Cimetidine EP Impurity B 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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