Crotamiton EP Impurity A

Name: Crotamiton EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-025096

About Crotamiton EP Impurity A

Listed under CAS 13936-71-5, Crotamiton EP Impurity A is a pharmacopeial impurity of Crotamiton available from Vaqora Chemicals. The compound has the formula C13H17NO, corresponding to a molecular weight of 203.28 g/mol. The IUPAC name is N-ethyl-N-(2-methylphenyl)but-3-enamide. It is also known as Crotamiton - Impurity A or N-Ethyl-N-(2-methylphenyl)-3-butenamide.

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. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Pharmaceutical QC and development laboratories use this impurity standard of Crotamiton to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Crotamiton EP Impurity A in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Crotamiton

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

Crotamiton impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Crotamiton EP Impurity A
Catalogue No.	VQ-025096
CAS Number	13936-71-5
IUPAC name	N-ethyl-N-(2-methylphenyl)but-3-enamide
Molecular formula	C₁₃H₁₇NO
Molecular weight	203.28 g/mol
Exact mass	203.131
Grade	Reference Standard
HSN code	38229090
InChIKey	NXXVQNLYGNUDLL-UHFFFAOYSA-N
SMILES	CCN(C1=CC=CC=C1C)C(=O)CC=C
PubChem CID	118832936

Physical properties
Physical form	Solid
LogP (XLogP3)	2.8
H-bond donors / acceptors	0 / 1
TPSA	20.3 Å²
Synonyms	Crotamiton - Impurity A, N-Ethyl-N-(2-methylphenyl)-3-butenamide, 3-Buteno-o-toluidide, N-ethyl-, 3-Butenamide, N-ethyl-N-(2-methylphenyl)-, Crotamiton impurity A, N-Ethyl-3-buteno-o-toluidide, N-Ethyl-N-(o-tolyl)but-3-enamide

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 Crotamiton EP Impurity A?

The CAS Registry Number of Crotamiton EP Impurity A is 13936-71-5. It is also known as Crotamiton - Impurity A, N-Ethyl-N-(2-methylphenyl)-3-butenamide, 3-Buteno-o-toluidide, N-ethyl-.

What is the molecular formula and molecular weight of Crotamiton EP Impurity A?

Crotamiton EP Impurity A has the molecular formula C13H17NO and a molecular weight of 203.28 g/mol. Its IUPAC name is N-ethyl-N-(2-methylphenyl)but-3-enamide.

What is Crotamiton EP Impurity A used for?

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

We supply Crotamiton EP Impurity A 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 Crotamiton EP Impurity A?

Yes. Every lot of Crotamiton EP Impurity A 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 Crotamiton EP Impurity A be shipped internationally?

Yes. Crotamiton EP Impurity A 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.