Cefadroxil EP Impurity G

Name: Cefadroxil EP Impurity G
Brand: Vaqora Chemicals
SKU: VQ-021125

About Cefadroxil EP Impurity G

Cefadroxil EP Impurity G is a pharmacopeial impurity of Cephalexin carrying the CAS registry number 34876-35-2. Formula C5H6O2S, molecular weight 130.17 g/mol. Systematically, it is named 4-hydroxy-3-methyl-2H-thiophen-5-one. Alternative names: Cefalexin EP Impurity D and Cefradine EP Impurity F.

The product is provided 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.

This Cephalexin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Cefadroxil EP Impurity G in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Cephalexin

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

Cephalexin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Cefadroxil EP Impurity G
Catalogue No.	VQ-021125
CAS Number	34876-35-2
IUPAC name	4-hydroxy-3-methyl-2H-thiophen-5-one
Molecular formula	C₅H₆O₂S
Molecular weight	130.17 g/mol
Exact mass	130.0089
Grade	Reference Standard
HSN code	38229090
InChIKey	JYGDHIPTFIMTTN-UHFFFAOYSA-N
SMILES	CC1=C(C(=O)SC1)O
PubChem CID	12919067

Physical properties
Physical form	Solid
LogP (XLogP3)	0.5
H-bond donors / acceptors	1 / 3
TPSA	62.6 Å²
Synonyms	Cefalexin EP Impurity D, Cefradine EP Impurity F, 3-Hydroxy-4-methyl-2(5H)-thiophenone, Cefradine - Impurity F, Cefalexin EP Impurity D (Free Base), Cephalexin - Impurity D, 3-Hydroxy-4-methylthiophen-2(5H)-one, 2(5H)-Thiophenone, 3-hydroxy-4-methyl-, Crotonic acid, 2-hydroxy-4-mercapto-3-methyl-, gamma-(thio lactone), Cefadroxil impurity G, Cefadroxil monohydrate impurity G, Cefradine impurity F

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 Cefadroxil EP Impurity G?

The CAS Registry Number of Cefadroxil EP Impurity G is 34876-35-2. It is also known as Cefalexin EP Impurity D, Cefradine EP Impurity F, 3-Hydroxy-4-methyl-2(5H)-thiophenone.

What is the molecular formula and molecular weight of Cefadroxil EP Impurity G?

Cefadroxil EP Impurity G has the molecular formula C5H6O2S and a molecular weight of 130.17 g/mol. Its IUPAC name is 4-hydroxy-3-methyl-2H-thiophen-5-one.

What is Cefadroxil EP Impurity G used for?

Cefadroxil EP Impurity G is supplied as a characterised reference material related to Cephalexin. 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 Cefadroxil EP Impurity G can I order?

We supply Cefadroxil EP Impurity G 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 Cefadroxil EP Impurity G?

Yes. Every lot of Cefadroxil EP Impurity G 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 Cefadroxil EP Impurity G be shipped internationally?

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