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API Impurities

(S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate

Reference StandardAvailable on request

Buy (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate (CAS 358629-51-3) from Zemixal. Request a quote with price, lead time and documents.

Pack sizes
(S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate chemical structure
CAS number358629-51-3
FormulaC9H15NO3
Molar mass185.22 g/mol
Physical formSolid
HS code38229090
InChIKeyQRQVFVYABBZXFO-ZETCQYMHSA-N
IUPAC namemethyl (2S)-2-(2-oxopyrrolidin-1-yl)butanoate

About (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate

(S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate is supplied by Zemixal as a characterised reference material for Levetiracetam analysis. Key data (Reference Standard): CAS 358629-51-3, formula C9H15NO3 and molar mass 185.22 g/mol. It is handled as a solid.

Where it is used

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Handling and storage

It carries the GHS signal word Danger (H318), so wear gloves and eye protection and work with good ventilation.

Available as 10 mg, 25 mg, 50 mg and 100 mg. Larger or split packs can be arranged. Every shipment includes a certificate of analysis with characterisation data. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Levetiracetam

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

Levetiracetam standards

Typical uses

  • Analytical method development
  • Method validation (AMV)
  • QC release testing
  • ANDA / DMF filings

Applications

Specifications and identifiers

Specifications of (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate
Product name(S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate
Catalogue numberZX-030234
CAS number358629-51-3
IUPAC namemethyl (2S)-2-(2-oxopyrrolidin-1-yl)butanoate
Molecular formulaC9H15NO3
Molar mass185.22 g/mol
Exact mass185.1052
GradeReference Standard
Physical formSolid
XLogP30.6
H-bond donors / acceptors0 / 3
Topological polar surface area46.6 Ų
HS code38229090
InChIKeyQRQVFVYABBZXFO-ZETCQYMHSA-N
SMILESCC[C@@H](C(=O)OC)N1CCCC1=O
PubChem CID9834145
Synonymsmethyl (S)-2-(2-oxopyrrolidin-1-yl)butanoate, Levetiracetam methyl ester, (2s)-2-(2-oxopyrrolidin-1-yl)butanoic acid methyl ester, (S)-2-(2-Oxopyrrolizino)butanoic acid methyl ester, 1-Pyrrolidineacetic acid, alpha-ethyl-2-oxo-, methyl ester, (alphaS)-, (S)-alpha-ethyl-2-oxo pyrrolidine acetic acid methyl ester

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

Safety and GHS hazards

GHS05 Corrosive
Corrosive

Signal word Danger

  • H318Causes serious eye damage

Precautionary statements P264 + P265, P280, P305 + P354 + P338, P317

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 (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate
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 (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate

Which CAS number identifies (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate?
(S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate is registered under CAS 358629-51-3. You may also see it listed as methyl (S)-2-(2-oxopyrrolidin-1-yl)butanoate, Levetiracetam methyl ester, (2s)-2-(2-oxopyrrolidin-1-yl)butanoic acid methyl ester. Our catalogue number for this item is ZX-030234.
What are the formula and molar mass of (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate?
For (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate, its formula is C9H15NO3 and its molar mass is 185.22 g/mol. The systematic (IUPAC) name is methyl (2S)-2-(2-oxopyrrolidin-1-yl)butanoate. InChIKey QRQVFVYABBZXFO-ZETCQYMHSA-N lets you match it in any structure database.
How is (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate used in pharmaceutical QC?
(S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate is a characterised reference material linked to Levetiracetam. 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 (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate?
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 (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate?
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 (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate to my country?
Yes. Because (S)-Methyl 2-(2-oxopyrrolidin-1-yl)butanoate 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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