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API Reference Standards

Montelukast

Reference StandardIn stock

Buy Montelukast (CAS 158966-92-8) from Zemixal. Request a quote with price, lead time and documents. Packs from 10 mg. Catalogue no. ZX-006661.

Pack sizes
Montelukast chemical structure
CAS number158966-92-8
FormulaC35H36ClNO3S
Molar mass586.2 g/mol
Physical formSolid
HS code38229090
InChIKeyUCHDWCPVSPXUMX-TZIWLTJVSA-N
IUPAC name2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetic acid

About Montelukast

Montelukast is supplied by Zemixal as a characterised reference material for Montelukast analysis. Key data (Reference Standard): CAS 158966-92-8, formula C35H36ClNO3S and molar mass 586.2 g/mol. It is handled as a solid.

Use cases we see most often

  • Identification & assay
  • Method development & validation
  • QC reference material

Safe handling

Hazard communication follows GHS (Warning: H302, H312 and H332). Our SDS lists exposure controls and first-aid measures.

Available as 10 mg, 25 mg, 50 mg, 100 mg and 250 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 Montelukast

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

Montelukast standards

Typical uses

  • Identification & assay
  • Method development & validation
  • QC reference material

Applications

Pharmaceutical Manufacturing and QCResearch Labs and Universities

Specifications and identifiers

Specifications of Montelukast
Product nameMontelukast
Catalogue numberZX-006661
CAS number158966-92-8
IUPAC name2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetic acid
Molecular formulaC35H36ClNO3S
Molar mass586.2 g/mol
Exact mass585.2104
GradeReference Standard
Physical formSolid
XLogP37.7
H-bond donors / acceptors2 / 5
Topological polar surface area95.7 Ų
HS code38229090
InChIKeyUCHDWCPVSPXUMX-TZIWLTJVSA-N
SMILESCC(C)(C1=CC=CC=C1CC[C@H](C2=CC=CC(=C2)/C=C/C3=NC4=C(C=CC(=C4)Cl)C=C3)SCC5(CC5)CC(=O)O)O
PubChem CID5281040
Synonymscis-Montelukast, Montelukast (INN), Montelukast racemate, C35H36ClNO3S, Brondilat (TN), MK0476 (free acid), ?-Hydroxy montelukast, Montelukast (Standard), Montelukast - Bio-X trade mark

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

  • H302Harmful if swallowed
  • H312Harmful in contact with skin
  • H332Harmful if inhaled

Precautionary statements P261, P264, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P317, P321, P330, P362 + P364, 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 Montelukast
10 mgQuoted on request
25 mgQuoted on request
50 mgQuoted on request
100 mgQuoted on request
250 mgQuoted on request
500 mgQuoted on request
1 gQuoted 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

Which CAS number identifies Montelukast?
Montelukast is registered under CAS 158966-92-8. You may also see it listed as cis-Montelukast, Montelukast (INN), Montelukast racemate. Our catalogue number for this item is ZX-006661.
What are the formula and molar mass of Montelukast?
For Montelukast, its formula is C35H36ClNO3S and its molar mass is 586.2 g/mol. The systematic (IUPAC) name is 2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetic acid. InChIKey UCHDWCPVSPXUMX-TZIWLTJVSA-N lets you match it in any structure database.
How is Montelukast used in pharmaceutical QC?
Montelukast 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?
This listing is Reference Standard grade. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg. Larger quantities and custom packing can be quoted on request.
Which documents come with Montelukast?
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 to my country?
Yes. Because Montelukast 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.

Other grades with CAS 158966-92-8

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