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API Impurities

Montelukast KSM-II Lactone Impurity

Reference StandardIn stock

Buy Montelukast KSM-II Lactone Impurity (CAS 162515-66-4) from Zemixal. Request a quote with price, lead time and documents.

Pack sizes
Montelukast KSM-II Lactone Impurity chemical structure
CAS number162515-66-4
FormulaC6H8OS
Molar mass128.19 g/mol
Physical formSolid
HS code38229090
Purity99.5%
InChIKeyRLQTWVHIEDBLNJ-UHFFFAOYSA-N
IUPAC name5-thiaspiro[2.4]heptan-6-one

About Montelukast KSM-II Lactone Impurity

Zemixal lists Montelukast KSM-II Lactone Impurity for laboratories that identify, quantify or control Montelukast and its related substances. Key data (Reference Standard): CAS 162515-66-4, formula C6H8OS and molar mass 128.19 g/mol. It is handled as a solid.

Typical applications

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

Standard pack sizes are 10 mg, 25 mg, 50 mg, 100 mg and 250 mg, and custom quantities are quoted on request. You receive a certificate of analysis with characterisation data with each order. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.

Reference standards for Montelukast

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

Montelukast standards

Typical uses

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

Applications

Specifications and identifiers

Specifications of Montelukast KSM-II Lactone Impurity
Product nameMontelukast KSM-II Lactone Impurity
Catalogue numberZX-004970
CAS number162515-66-4
IUPAC name5-thiaspiro[2.4]heptan-6-one
Molecular formulaC6H8OS
Molar mass128.19 g/mol
Exact mass128.0296
GradeReference Standard
Purity / assay99.5%
Physical formSolid
XLogP31
H-bond donors / acceptors0 / 2
Topological polar surface area42.4 Ų
HS code38229090
InChIKeyRLQTWVHIEDBLNJ-UHFFFAOYSA-N
SMILESC1CC12CC(=O)SC2
PubChem CID10855471
SynonymsMontelukast Impurity N2, Montelukast Impurity 51

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

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of Montelukast KSM-II Lactone Impurity
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 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 Montelukast KSM-II Lactone Impurity

Which CAS number identifies Montelukast KSM-II Lactone Impurity?
Montelukast KSM-II Lactone Impurity is registered under CAS 162515-66-4. You may also see it listed as Montelukast Impurity N2, Montelukast Impurity 51. Our catalogue number for this item is ZX-004970.
What are the formula and molar mass of Montelukast KSM-II Lactone Impurity?
For Montelukast KSM-II Lactone Impurity, its formula is C6H8OS and its molar mass is 128.19 g/mol. The systematic (IUPAC) name is 5-thiaspiro[2.4]heptan-6-one. InChIKey RLQTWVHIEDBLNJ-UHFFFAOYSA-N lets you match it in any structure database.
How is Montelukast KSM-II Lactone Impurity used in pharmaceutical QC?
Montelukast KSM-II Lactone Impurity is a characterised reference material linked to Montelukast. 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 Montelukast KSM-II Lactone Impurity?
This listing is Reference Standard grade with 99.5% purity. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Montelukast KSM-II Lactone Impurity?
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 Montelukast KSM-II Lactone Impurity to my country?
Yes. Montelukast KSM-II Lactone Impurity ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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