Captopril EP Impurity E

Name: Captopril EP Impurity E
Brand: Vaqora Chemicals
SKU: VQ-021988

About Captopril EP Impurity E

Vaqora Chemicals supplies Captopril EP Impurity E, a pharmacopeial impurity of Captopril registered under CAS number 23500-15-4. With the molecular formula C9H15NO3, it has a molar mass of 185.22 g/mol. Systematically, it is named (2S)-1-(2-methylpropanoyl)pyrrolidine-2-carboxylic acid. Alternative names: Captopril - Impurity E and isobutyrylproline.

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.

This Captopril 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.

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

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

Industries

Related to Captopril

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

Captopril impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Captopril EP Impurity E
Catalogue No.	VQ-021988
CAS Number	23500-15-4
IUPAC name	(2S)-1-(2-methylpropanoyl)pyrrolidine-2-carboxylic acid
Molecular formula	C₉H₁₅NO₃
Molecular weight	185.22 g/mol
Exact mass	185.1052
Grade	Reference Standard
HSN code	38229090
InChIKey	WKQUFVTUGGLNNO-ZETCQYMHSA-N
SMILES	CC(C)C(=O)N1CCC[C@H]1C(=O)O
PubChem CID	15324300

Physical properties
Physical form	Solid
LogP (XLogP3)	0.6
H-bond donors / acceptors	1 / 3
TPSA	57.6 Å²
Synonyms	Captopril - Impurity E, isobutyrylproline, L-Proline, 1-(2-methyl-1-oxopropyl)-, Captopril Impurity E, Proline, 1-isobutyryl-, L, 1-Isobutyrylproline, (-)-, Captopril specified impurity E, (S)-1-Isobutyrylpyrrolidine-2-carboxylic acid, 1-isobutyryl-L-proline, 1-(2-Methyl-1-oxopropyl)-L-proline, (2S)-1-[2-Methylpropanoyl]-pyrrolidine-2-carboxylic Acid, N-isobutyrylproline

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 Captopril EP Impurity E?

The CAS Registry Number of Captopril EP Impurity E is 23500-15-4. It is also known as Captopril - Impurity E, isobutyrylproline, L-Proline, 1-(2-methyl-1-oxopropyl)-.

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

Captopril EP Impurity E has the molecular formula C9H15NO3 and a molecular weight of 185.22 g/mol. Its IUPAC name is (2S)-1-(2-methylpropanoyl)pyrrolidine-2-carboxylic acid.

What is Captopril EP Impurity E used for?

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

We supply Captopril 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 Captopril EP Impurity E?

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

Yes. Captopril EP Impurity E 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.