Montelukast EP Impurity B

Name: Montelukast EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-023172

About Montelukast EP Impurity B

Vaqora Chemicals supplies Montelukast EP Impurity B, a pharmacopeial impurity of Montelukast registered under CAS number 918972-54-0. The compound has the formula C35H34ClNO2S, corresponding to a molecular weight of 568.2 g/mol. Alternative names: Montelukast - Impurity B and Montelukast methylstyrene.

The product is provided 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. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

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 B
Catalogue No.	VQ-023172
CAS Number	918972-54-0
IUPAC name	2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-(2-prop-1-en-2-ylphenyl)propyl]sulfanylmethyl]cyclopropyl]acetic acid
Molecular formula	C₃₅H₃₄ClNO₂S
Molecular weight	568.2 g/mol
Exact mass	567.1999
Grade	Reference Standard
HSN code	38229090
InChIKey	LLGQICNFACCGPR-LDXVMNHOSA-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
PubChem CID	46782398

Physical properties
Physical form	Solid
LogP (XLogP3)	9.4
H-bond donors / acceptors	1 / 4
TPSA	75.5 Å²
Synonyms	Montelukast - Impurity B, Montelukast methylstyrene, Montelukast sodium specified impurity B, Montelukast Styrene, Montelukast Impurity B, Montelukast Impurity 3, Montelukast Methylstyrene Impurity

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 B?

The CAS Registry Number of Montelukast EP Impurity B is 918972-54-0. It is also known as Montelukast - Impurity B, Montelukast methylstyrene, Montelukast sodium specified impurity B.

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

Montelukast EP Impurity B has the molecular formula C35H34ClNO2S and a molecular weight of 568.2 g/mol. Its IUPAC name is 2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-(2-prop-1-en-2-ylphenyl)propyl]sulfanylmethyl]cyclopropyl]acetic acid.

What is Montelukast EP Impurity B used for?

Montelukast EP Impurity B 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 B can I order?

We supply Montelukast EP Impurity B 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 EP Impurity B?

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

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