Captopril EP Impurity G

About Captopril EP Impurity G

Captopril EP Impurity G is a pharmacopeial impurity of Captopril carrying the CAS registry number 33325-40-5. Formula C6H10O3S, molecular weight 162.21 g/mol. The IUPAC name is 3-acetylsulfanyl-2-methylpropanoic acid. Alternative names: Captopril - Impurity G and 3-(Acetylthio)-2-methylpropanoic acid.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

As a characterised impurity of Captopril, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Captopril EP Impurity G is dispatched with a Certificate of Analysis (COA) to destinations 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 G
Catalogue No.	VQ-021983
CAS Number	33325-40-5
IUPAC name	3-acetylsulfanyl-2-methylpropanoic acid
Molecular formula	C₆H₁₀O₃S
Molecular weight	162.21 g/mol
Exact mass	162.0351
Grade	Reference Standard
HSN code	38229090
InChIKey	VFVHNRJEYQGRGE-UHFFFAOYSA-N
SMILES	CC(CSC(=O)C)C(=O)O
PubChem CID	118073

Physical properties
Physical form	Solid
LogP (XLogP3)	0.7
H-bond donors / acceptors	1 / 4
TPSA	79.7 Å²
Synonyms	Captopril - Impurity G, 3-(Acetylthio)-2-methylpropanoic acid, Propanoic acid, 3-(acetylthio)-2-methyl-, 3-Acetylthioisobutyric acid, 3-acetylthio-2-methylpropanoic acid, 3-acetylthio-2-methylpropionic acid, 3-Acetylthio-2-methylpropionicacid, 3-(Acetylthio)-2-methylpropionic acid, 3-(Acetylsulfanyl)-2-methylpropanoic acid, 3-acetylsulfanyl-2-methylpropionic acid, (S)-beta-(Acetylmercapto)isobutyric acid, 2-Methyl-3-(acetylthio)propionic acid

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, 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 G?

The CAS Registry Number of Captopril EP Impurity G is 33325-40-5. It is also known as Captopril - Impurity G, 3-(Acetylthio)-2-methylpropanoic acid, Propanoic acid, 3-(acetylthio)-2-methyl-.

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

Captopril EP Impurity G has the molecular formula C6H10O3S and a molecular weight of 162.21 g/mol. Its IUPAC name is 3-acetylsulfanyl-2-methylpropanoic acid.

What is Captopril EP Impurity G used for?

Captopril EP Impurity G 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 G can I order?

We supply Captopril EP Impurity G 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 G?

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

Yes. Captopril EP Impurity G 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.