Pyrimethamine EP Impurity 3

Name: Pyrimethamine EP Impurity 3
Brand: Vaqora Chemicals
SKU: VQ-041773

About Pyrimethamine EP Impurity 3

Listed under CAS 93456-61-2, Pyrimethamine EP Impurity 3 is a pharmacopeial impurity of Pyrimethamine available from Vaqora Chemicals. With the molecular formula C12H12ClN3O, it has a molar mass of 249.69 g/mol. Systematically, it is named 4-amino-5-(4-chlorophenyl)-6-ethyl-1H-pyrimidin-2-one. Alternative names: Pyrimethamine BP Impurity 3 and Cytosine, 5-(p-chlorophenyl)-6-ethyl-.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Pyrimethamine to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export 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 3
Catalogue No.	VQ-041773
CAS Number	93456-61-2
IUPAC name	4-amino-5-(4-chlorophenyl)-6-ethyl-1H-pyrimidin-2-one
Molecular formula	C₁₂H₁₂ClN₃O
Molecular weight	249.69 g/mol
Exact mass	249.0669
Grade	Reference Standard
HSN code	38229090
InChIKey	AXQZDZBJECJYPG-UHFFFAOYSA-N
SMILES	CCC1=C(C(=NC(=O)N1)N)C2=CC=C(C=C2)Cl
PubChem CID	11857175

Physical properties
Physical form	Solid
LogP (XLogP3)	1.8
H-bond donors / acceptors	2 / 1
TPSA	67.5 Å²
Synonyms	Pyrimethamine BP Impurity 3, Cytosine, 5-(p-chlorophenyl)-6-ethyl-, 6-Amino-5-(4-chlorophenyl)-4-ethyl-2(1H)-pyrimidinone, 2(1H)-Pyrimidinone, 6-amino-5-(4-chlorophenyl)-4-ethyl-, 6-Amino-5-(4-chlorophenyl)-4-ethylpyrimidin-2(1H)-one trifluoroacetate salt

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 3?

The CAS Registry Number of Pyrimethamine EP Impurity 3 is 93456-61-2. It is also known as Pyrimethamine BP Impurity 3, Cytosine, 5-(p-chlorophenyl)-6-ethyl-, 6-Amino-5-(4-chlorophenyl)-4-ethyl-2(1H)-pyrimidinone.

What is the molecular formula and molecular weight of Pyrimethamine EP Impurity 3?

Pyrimethamine EP Impurity 3 has the molecular formula C12H12ClN3O and a molecular weight of 249.69 g/mol. Its IUPAC name is 4-amino-5-(4-chlorophenyl)-6-ethyl-1H-pyrimidin-2-one.

What is Pyrimethamine EP Impurity 3 used for?

Pyrimethamine EP Impurity 3 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 3 can I order?

We supply Pyrimethamine EP Impurity 3 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 3?

Yes. Every lot of Pyrimethamine EP Impurity 3 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 3 be shipped internationally?

Yes. We export Pyrimethamine EP Impurity 3 worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.