Cephalexin Diketopiperazine Monoacid

About Cephalexin Diketopiperazine Monoacid

Cephalexin Diketopiperazine Monoacid is an impurity of Cefalexin carrying the CAS registry number 1323247-65-9. With the molecular formula C16H19N3O5S, it has a molar mass of 365.4 g/mol. Systematically, it is named 2-[1-amino-2-[benzyl(carboxy)amino]-2-oxoethyl]-5-methyl-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid. It is also known as Cefalexin diketopiperazine monoacid.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

Pharmaceutical QC and development laboratories use this impurity standard of Cefalexin to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from 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

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Cefalexin

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

Cefalexin impurities

Specifications & identifiers

Chemical identifiers
Product name	Cephalexin Diketopiperazine Monoacid
Catalogue No.	VQ-024907
CAS Number	1323247-65-9
IUPAC name	2-[1-amino-2-[benzyl(carboxy)amino]-2-oxoethyl]-5-methyl-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid
Molecular formula	C₁₆H₁₉N₃O₅S
Molecular weight	365.4 g/mol
Exact mass	365.1045
Grade	Reference Standard
HSN code	38229090
InChIKey	WHOCCWUTLCSGHB-UHFFFAOYSA-N
SMILES	CC1=C(NC(SC1)C(C(=O)N(CC2=CC=CC=C2)C(=O)O)N)C(=O)O
PubChem CID	131699023

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.9
H-bond donors / acceptors	4 / 8
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 Cephalexin Diketopiperazine Monoacid?

The CAS Registry Number of Cephalexin Diketopiperazine Monoacid is 1323247-65-9. It is also known as Cephalexin Diketopiperazine Monoacid (Mixture of Diastereomers), Cefalexin diketopiperazine monoacid.

What is the molecular formula and molecular weight of Cephalexin Diketopiperazine Monoacid?

Cephalexin Diketopiperazine Monoacid has the molecular formula C16H19N3O5S and a molecular weight of 365.4 g/mol. Its IUPAC name is 2-[1-amino-2-[benzyl(carboxy)amino]-2-oxoethyl]-5-methyl-3,6-dihydro-2H-1,3-thiazine-4-carboxylic acid.

What is Cephalexin Diketopiperazine Monoacid used for?

Cephalexin Diketopiperazine Monoacid is supplied as a characterised reference material related to Cefalexin. 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 Cephalexin Diketopiperazine Monoacid can I order?

We supply Cephalexin Diketopiperazine Monoacid 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 Cephalexin Diketopiperazine Monoacid?

Yes. Every lot of Cephalexin Diketopiperazine Monoacid 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 Cephalexin Diketopiperazine Monoacid be shipped internationally?

Yes. We export Cephalexin Diketopiperazine Monoacid worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.