Cloxacillin EP Impurity D

Name: Cloxacillin EP Impurity D
Brand: Vaqora Chemicals
SKU: VQ-022248

About Cloxacillin EP Impurity D

Listed under CAS 23598-72-3, Cloxacillin EP Impurity D is a pharmacopeial impurity of Cloxacillin available from Vaqora Chemicals. With the molecular formula C11H8ClNO3, it has a molar mass of 237.64 g/mol. Systematically, it is named 3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid. Common synonyms include Cloxacillin Sodium EP Impurity D and Cloxacillin - Impurity D.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

This Cloxacillin impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Cloxacillin EP Impurity D 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 Cloxacillin

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

Cloxacillin impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Cloxacillin EP Impurity D
Catalogue No.	VQ-022248
CAS Number	23598-72-3
IUPAC name	3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid
Molecular formula	C₁₁H₈ClNO₃
Molecular weight	237.64 g/mol
Exact mass	237.0193
Grade	Reference Standard
HSN code	38229090
InChIKey	UVEPOHNXGXVOJE-UHFFFAOYSA-N
SMILES	CC1=C(C(=NO1)C2=CC=CC=C2Cl)C(=O)O
PubChem CID	90203

Physical properties
Physical form	Solid
LogP (XLogP3)	2.6
H-bond donors / acceptors	1 / 4
TPSA	63.3 Å²
Synonyms	Cloxacillin Sodium EP Impurity D, Cloxacillin - Impurity D, 3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxylic acid, 4-Isoxazolecarboxylic acid, 3-(2-chlorophenyl)-5-methyl-, 3-(2-Chlorophenyl)-5-methyl-4-isoxazolecarboxylic acid, 4-Isoxazolecarboxylic acid, 3-(o-chlorophenyl)-5-methyl-, 4-Isoxazolecarboxylic acid, 3-(o-chlorophenyl)-5-methyl-(8CI), 5-methyl-3-(2'-chlorophenyl)-4-isoxazolecarboxylic acid, 3-(2-Chloro-phenyl)-5-methyl-isoxazole-4-carboxylic acid, 3-(2-Chlorophenyl)-5-methyl-isoxazole-4-carboxylic acid, cmic acid, 3-o-chlorophenyl-5-methylisoxazole-4-carboxylic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

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 Cloxacillin EP Impurity D?

The CAS Registry Number of Cloxacillin EP Impurity D is 23598-72-3. It is also known as Cloxacillin Sodium EP Impurity D, Cloxacillin - Impurity D, 3-(2-Chlorophenyl)-5-methylisoxazole-4-carboxylic acid.

What is the molecular formula and molecular weight of Cloxacillin EP Impurity D?

Cloxacillin EP Impurity D has the molecular formula C11H8ClNO3 and a molecular weight of 237.64 g/mol. Its IUPAC name is 3-(2-chlorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid.

What is Cloxacillin EP Impurity D used for?

Cloxacillin EP Impurity D is supplied as a characterised reference material related to Cloxacillin. 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 Cloxacillin EP Impurity D can I order?

We supply Cloxacillin EP Impurity D 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 Cloxacillin EP Impurity D?

Yes. Every lot of Cloxacillin EP Impurity D 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 Cloxacillin EP Impurity D be shipped internationally?

Yes. Cloxacillin EP Impurity D is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.