Montelukast

Name: Montelukast
Brand: Vaqora Chemicals
SKU: VQ-007591

About Montelukast

Vaqora Chemicals supplies Montelukast, a high-purity reference standard of Montelukast registered under CAS number 158966-92-8. The compound has the formula C35H36ClNO3S, corresponding to a molecular weight of 586.2 g/mol. It is also known as cis-Montelukast or Montelukast (INN).

The product is provided 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 reference sample of Montelukast, it is used for identification, assay and impurity-profiling work during analytical method development, validation (AMV) and routine QC. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Montelukast in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide. Stock is available for quick dispatch.

Typical applications

Identification & assay
Method development & validation
QC reference material

Industries

Related to Montelukast

View every impurity, metabolite and intermediate we list for Montelukast.

Montelukast impurities

Specifications & identifiers

Chemical identifiers
Product name	Montelukast
Catalogue No.	VQ-007591
CAS Number	158966-92-8
IUPAC name	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
Molecular formula	C₃₅H₃₆ClNO₃S
Molecular weight	586.2 g/mol
Exact mass	585.2104
Grade	Reference Standard
HSN code	38229090
InChIKey	UCHDWCPVSPXUMX-TZIWLTJVSA-N
SMILES	CC(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 CID	5281040

Physical properties
Physical form	Solid
LogP (XLogP3)	7.7
H-bond donors / acceptors	2 / 5
TPSA	95.7 Å²
Synonyms	cis-Montelukast, Montelukast (INN), Montelukast racemate, C35H36ClNO3S, Brondilat (TN), MK0476 (free acid), ?-Hydroxy montelukast, Montelukast (Standard), Montelukast - Bio-X trade mark

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

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 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

Other grades of CAS 158966-92-8

IP/BP/USP

Montelukast

CAS: 158966-92-8
Formula: C₃₅H₃₆ClNO₃S
MW: 586.2 g/mol

VQ-004178

Frequently asked questions

What is the CAS number of Montelukast?

The CAS Registry Number of Montelukast is 158966-92-8. It is also known as cis-Montelukast, Montelukast (INN), Montelukast racemate.

What is the molecular formula and molecular weight of Montelukast?

Montelukast has the molecular formula C35H36ClNO3S and a molecular weight of 586.2 g/mol. Its 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.

What is Montelukast used for?

Montelukast is supplied as a characterised reference material related to Montelukast. 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 Montelukast can I order?

We supply Montelukast in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Montelukast?

Yes. Every lot of Montelukast 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 Montelukast be shipped internationally?

Yes. Montelukast 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.