Montelukast Methyl Ester

About Montelukast Methyl Ester

Montelukast Methyl Ester is an impurity of Montelukast carrying the CAS registry number 855473-51-7. With the molecular formula C36H38ClNO3S, it has a molar mass of 600.2 g/mol. Common synonyms include Montelukast Acid Methyl Ester and Montelukast Acid Methyl Ester Racemate.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Good laboratory practice and suitable PPE are recommended during handling.

Pharmaceutical QC and development laboratories use this impurity standard of Montelukast to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

We offer Montelukast Methyl Ester in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Montelukast

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

Montelukast impurities

Specifications & identifiers

Chemical identifiers
Product name	Montelukast Methyl Ester
Catalogue No.	VQ-023179
CAS Number	855473-51-7
IUPAC name	methyl 2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetate
Molecular formula	C₃₆H₃₈ClNO₃S
Molecular weight	600.2 g/mol
Exact mass	599.2261
Grade	Reference Standard
HSN code	38229090
InChIKey	MAWSFAVEWJQZKH-ISYDNLPHSA-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)OC)O
PubChem CID	11592444

Physical properties
Physical form	Solid
LogP (XLogP3)	8.1
H-bond donors / acceptors	1 / 5
TPSA	84.7 Å²

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Montelukast Methyl Ester?

The CAS Registry Number of Montelukast Methyl Ester is 855473-51-7. It is also known as Montelukast Acid Methyl Ester, Montelukast Acid Methyl Ester Racemate.

What is the molecular formula and molecular weight of Montelukast Methyl Ester?

Montelukast Methyl Ester has the molecular formula C36H38ClNO3S and a molecular weight of 600.2 g/mol. Its IUPAC name is methyl 2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetate.

What is Montelukast Methyl Ester used for?

Montelukast Methyl Ester 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 Methyl Ester can I order?

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

Do you provide a COA and SDS with Montelukast Methyl Ester?

Yes. Every lot of Montelukast Methyl Ester 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 Methyl Ester be shipped internationally?

Yes. We export Montelukast Methyl Ester worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.