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Pharmacopeial Impurities (EP / USP / BP)

Pyrimethamine EP Impurity A

Reference StandardAvailable on request

Pyrimethamine EP Impurity A (CAS 55474-40-3) supplier Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg.

Pack sizes
Pyrimethamine EP Impurity A chemical structure
CAS number55474-40-3
FormulaC11H10ClNO
Molar mass207.65 g/mol
Physical formSolid
HS code38229090
InChIKeyNKRGJBDEEGULAN-UHFFFAOYSA-N
IUPAC name2-(4-chlorophenyl)-3-oxopentanenitrile

About Pyrimethamine EP Impurity A

Pyrimethamine EP Impurity A is supplied by Zemixal as a characterised reference material for Pyrimethamine analysis. Identity at a glance (Reference Standard): CAS 55474-40-3, formula C11H10ClNO and molar mass 207.65 g/mol. It is handled as a solid.

Typical applications

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

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. 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 Pyrimethamine

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

Pyrimethamine 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 Pyrimethamine EP Impurity A
Product namePyrimethamine EP Impurity A
Catalogue numberZX-026035
CAS number55474-40-3
IUPAC name2-(4-chlorophenyl)-3-oxopentanenitrile
Molecular formulaC11H10ClNO
Molar mass207.65 g/mol
Exact mass207.0451
GradeReference Standard
Physical formSolid
XLogP32.6
H-bond donors / acceptors0 / 2
Topological polar surface area40.9 Ų
HS code38229090
InChIKeyNKRGJBDEEGULAN-UHFFFAOYSA-N
SMILESCCC(=O)C(C#N)C1=CC=C(C=C1)Cl
PubChem CID3016971
Synonymsα-(4-Chlorophenyl)-α-propionylacetonitrile, alpha-(4-Chlorophenyl)-alpha-propionylacetonitrile, Pyrimethamine Impurity A, Pyrimethamine Inhouse Impurity A, 4-Chloro-alpha-(1-oxopropyl)benzeneacetonitrile, Benzeneacetonitrile, 4-chloro-alpha-(1-oxopropyl)-, 2-(4-Chlorophenyl)-3-oxovaleronitrile, a-(4-Chlorophenyl)-a-propionylacetonitrile, alpha-propionyl-p-chlorophenyl acetonitrile

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Pyrimethamine EP Impurity A
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 Pyrimethamine EP Impurity A

Which CAS number identifies Pyrimethamine EP Impurity A?
Pyrimethamine EP Impurity A is registered under CAS 55474-40-3. You may also see it listed as α-(4-Chlorophenyl)-α-propionylacetonitrile, alpha-(4-Chlorophenyl)-alpha-propionylacetonitrile, Pyrimethamine Impurity A. Our catalogue number for this item is ZX-026035.
What are the formula and molar mass of Pyrimethamine EP Impurity A?
For Pyrimethamine EP Impurity A, its formula is C11H10ClNO and its molar mass is 207.65 g/mol. The systematic (IUPAC) name is 2-(4-chlorophenyl)-3-oxopentanenitrile. InChIKey NKRGJBDEEGULAN-UHFFFAOYSA-N lets you match it in any structure database.
How is Pyrimethamine EP Impurity A used in pharmaceutical QC?
Pyrimethamine EP Impurity A is a characterised reference material linked to Pyrimethamine. 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 Pyrimethamine EP Impurity A?
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 Pyrimethamine EP Impurity A?
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 Pyrimethamine EP Impurity A to my country?
Yes. Pyrimethamine EP Impurity A ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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