Cefradine EP Impurity E

About Cefradine EP Impurity E

Cefradine EP Impurity E is a pharmacopeial impurity of Cephalexin carrying the CAS registry number 215172-75-1. Formula C16H17N3O5S, molecular weight 363.4 g/mol. It is also known as 2-Hydroxy Cephalexin or Cefradine - Impurity E.

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. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Cephalexin 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.

We offer Cefradine EP Impurity E 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	Cefradine EP Impurity E
Catalogue No.	VQ-021104
CAS Number	215172-75-1
IUPAC name	(6R,7R)-7-[[(2R)-2-amino-2-(2-hydroxyphenyl)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid
Molecular formula	C₁₆H₁₇N₃O₅S
Molecular weight	363.4 g/mol
Exact mass	363.0889
Grade	Reference Standard
HSN code	38229090
InChIKey	CUXVKLLSHPANDN-UEKVPHQBSA-N
SMILES	CC1=C(N2[C@@H]([C@@H](C2=O)NC(=O)[C@@H](C3=CC=CC=C3O)N)SC1)C(=O)O
PubChem CID	129010473

Physical properties
Physical form	Solid
LogP (XLogP3)	0.8
H-bond donors / acceptors	4 / 7
TPSA	158 Å²

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 Cefradine EP Impurity E?

The CAS Registry Number of Cefradine EP Impurity E is 215172-75-1. It is also known as 2-Hydroxy Cephalexin, Cefradine - Impurity E, 2-Hydroxycephalexin.

What is the molecular formula and molecular weight of Cefradine EP Impurity E?

Cefradine EP Impurity E has the molecular formula C16H17N3O5S and a molecular weight of 363.4 g/mol. Its IUPAC name is (6R,7R)-7-[[(2R)-2-amino-2-(2-hydroxyphenyl)acetyl]amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid.

What is Cefradine EP Impurity E used for?

Cefradine EP Impurity E 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 Cefradine EP Impurity E can I order?

We supply Cefradine EP Impurity E 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 Cefradine EP Impurity E?

Yes. Every lot of Cefradine EP Impurity E 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 Cefradine EP Impurity E be shipped internationally?

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