Montelukast EP Impurity A

Name: Montelukast EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-006512

About Montelukast EP Impurity A

Listed under CAS 220927-27-5, Montelukast EP Impurity A is a pharmacopeial impurity of Montelukast available from Vaqora Chemicals. Its molecular formula is C35H36ClNO3S and its molecular weight is 586.2 g/mol. It is also known as (S)-Montelukast or Montelukast S-Isomer.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Handle it with standard laboratory precautions and appropriate personal protective equipment.

This Montelukast impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 5 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. Stock is available for quick dispatch.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Related to Montelukast

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

Montelukast impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Montelukast EP Impurity A
Catalogue No.	VQ-006512
CAS Number	220927-27-5
Other CAS	190078-45-6
IUPAC name	2-[1-[[(1S)-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-OYLFJNDKSA-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	6540473

Physical properties
Physical form	Solid
LogP (XLogP3)	7.7
H-bond donors / acceptors	2 / 5
TPSA	95.7 Å²
Synonyms	(S)-Montelukast, Montelukast S-Isomer, Montelukast, (S)-, Montelukast sodium specified impurity A, Montelukast EP Impurity A, Ent-Montelukast

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 EP Impurity A?

The CAS Registry Number of Montelukast EP Impurity A is 220927-27-5. It is also known as (S)-Montelukast, Montelukast S-Isomer, Montelukast, (S)-.

What is the molecular formula and molecular weight of Montelukast EP Impurity A?

Montelukast EP Impurity A has the molecular formula C35H36ClNO3S and a molecular weight of 586.2 g/mol. Its IUPAC name is 2-[1-[[(1S)-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 EP Impurity A used for?

Montelukast EP Impurity A 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 EP Impurity A can I order?

We supply Montelukast EP Impurity A in Reference Standard grade, in 5 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Montelukast EP Impurity A?

Yes. Every lot of Montelukast EP Impurity A 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 EP Impurity A be shipped internationally?

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