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Pharmacopeial Impurities (EP / USP / BP)

Captopril EP Impurity G

Reference StandardAvailable on request

Order Captopril EP Impurity G (CAS 33325-40-5) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 10 mg.

Pack sizes
Captopril EP Impurity G chemical structure
CAS number33325-40-5
FormulaC6H10O3S
Molar mass162.21 g/mol
Physical formSolid
HS code38229090
InChIKeyVFVHNRJEYQGRGE-UHFFFAOYSA-N
IUPAC name3-acetylsulfanyl-2-methylpropanoic acid

About Captopril EP Impurity G

Zemixal lists Captopril EP Impurity G for laboratories that identify, quantify or control Captopril and its related substances. For your records (Reference Standard), the material is defined by CAS 33325-40-5, formula C6H10O3S and molar mass 162.21 g/mol. It is handled as a solid.

Where it is used

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

Safe handling

Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Request pricing online and we confirm availability, documentation and freight to your country.

Reference standards for Captopril

See every impurity, metabolite and related compound we list for this API.

Captopril standards

Typical uses

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

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Grade guides

Ph. Eur. Grade (European Pharmacopoeia)

Specifications and identifiers

Specifications of Captopril EP Impurity G
Product nameCaptopril EP Impurity G
Catalogue numberZX-021019
CAS number33325-40-5
IUPAC name3-acetylsulfanyl-2-methylpropanoic acid
Molecular formulaC6H10O3S
Molar mass162.21 g/mol
Exact mass162.0351
GradeReference Standard
Physical formSolid
XLogP30.7
H-bond donors / acceptors1 / 4
Topological polar surface area79.7 Ų
HS code38229090
InChIKeyVFVHNRJEYQGRGE-UHFFFAOYSA-N
SMILESCC(CSC(=O)C)C(=O)O
PubChem CID118073
SynonymsCaptopril - 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

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

GHS07 Irritant or harmful
Irritant or harmful

Signal word Warning

  • 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 summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.

Pack sizes

Pack sizes of Captopril EP Impurity G
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about Captopril EP Impurity G

Which CAS number identifies Captopril EP Impurity G?
Captopril EP Impurity G is registered under CAS 33325-40-5. You may also see it listed as Captopril - Impurity G, 3-(Acetylthio)-2-methylpropanoic acid, Propanoic acid, 3-(acetylthio)-2-methyl-. Our catalogue number for this item is ZX-021019.
What are the formula and molar mass of Captopril EP Impurity G?
For Captopril EP Impurity G, its formula is C6H10O3S and its molar mass is 162.21 g/mol. The systematic (IUPAC) name is 3-acetylsulfanyl-2-methylpropanoic acid. InChIKey VFVHNRJEYQGRGE-UHFFFAOYSA-N lets you match it in any structure database.
How is Captopril EP Impurity G used in pharmaceutical QC?
Captopril EP Impurity G is a characterised reference material linked to Captopril. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.
What grade and pack sizes are available for Captopril EP Impurity G?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Captopril EP Impurity G?
Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.
Can Zemixal ship Captopril EP Impurity G to my country?
Yes. Because Captopril EP Impurity G is classed as hazardous, it travels in UN-approved packaging as dangerous goods under IATA or IMDG rules, with the export paperwork your broker needs.

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