Pyrimethamine EP Impurity A

Name: Pyrimethamine EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-027114

About Pyrimethamine EP Impurity A

Pyrimethamine EP Impurity A (CAS 55474-40-3) is a pharmacopeial impurity of Pyrimethamine offered by Vaqora Chemicals. With the molecular formula C11H10ClNO, it has a molar mass of 207.65 g/mol. Systematically, it is named 2-(4-chlorophenyl)-3-oxopentanenitrile. Alternative names: α-(4-Chlorophenyl)-α-propionylacetonitrile and Pyrimethamine Impurity A.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Good laboratory practice and suitable PPE are recommended during handling.

As a characterised impurity of Pyrimethamine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Pyrimethamine EP Impurity A in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Pyrimethamine

View every impurity, metabolite and intermediate we list for Pyrimethamine.

Pyrimethamine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Pyrimethamine EP Impurity A
Catalogue No.	VQ-027114
CAS Number	55474-40-3
IUPAC name	2-(4-chlorophenyl)-3-oxopentanenitrile
Molecular formula	C₁₁H₁₀ClNO
Molecular weight	207.65 g/mol
Exact mass	207.0451
Grade	Reference Standard
HSN code	38229090
InChIKey	NKRGJBDEEGULAN-UHFFFAOYSA-N
SMILES	CCC(=O)C(C#N)C1=CC=C(C=C1)Cl
PubChem CID	3016971

Physical properties
Physical form	Solid
LogP (XLogP3)	2.6
H-bond donors / acceptors	0 / 2
TPSA	40.9 Å²
Synonyms	α-(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

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Pyrimethamine EP Impurity A?

The CAS Registry Number of Pyrimethamine EP Impurity A is 55474-40-3. It is also known as α-(4-Chlorophenyl)-α-propionylacetonitrile, alpha-(4-Chlorophenyl)-alpha-propionylacetonitrile, Pyrimethamine Impurity A.

What is the molecular formula and molecular weight of Pyrimethamine EP Impurity A?

Pyrimethamine EP Impurity A has the molecular formula C11H10ClNO and a molecular weight of 207.65 g/mol. Its IUPAC name is 2-(4-chlorophenyl)-3-oxopentanenitrile.

What is Pyrimethamine EP Impurity A used for?

Pyrimethamine EP Impurity A is supplied as a characterised reference material related to Pyrimethamine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Pyrimethamine EP Impurity A can I order?

We supply Pyrimethamine EP Impurity A in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Pyrimethamine EP Impurity A?

Yes. Every lot of Pyrimethamine EP Impurity A is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Pyrimethamine EP Impurity A be shipped internationally?

Yes. We export Pyrimethamine EP Impurity A worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.