Zafirlukast

Name: Zafirlukast
Brand: Vaqora Chemicals
SKU: VQ-034717

About Zafirlukast

Listed under CAS 107753-78-6, Zafirlukast is a high-purity reference standard of Zafirlukast available from Vaqora Chemicals. The compound has the formula C31H33N3O6S, corresponding to a molecular weight of 575.7 g/mol. Its systematic (IUPAC) name is cyclopentyl N-[3-[[2-methoxy-4-[(2-methylphenyl)sulfonylcarbamoyl]phenyl]methyl]-1-methylindol-5-yl]carbamate. It is also known as Anhydrous Crystalline Zafirlukast or Zafirlukast Crystalline Monohydrate.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Good laboratory practice and suitable PPE are recommended during handling.

Laboratories use this Zafirlukast standard for identity and assay testing, system suitability checks and method validation supporting ANDA and DMF filings. Buyers come mainly from 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

Identification & assay
Method development & validation
QC reference material

Industries

Related to Zafirlukast

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

Zafirlukast impurities

Specifications & identifiers

Chemical identifiers
Product name	Zafirlukast
Catalogue No.	VQ-034717
CAS Number	107753-78-6
IUPAC name	cyclopentyl N-[3-[[2-methoxy-4-[(2-methylphenyl)sulfonylcarbamoyl]phenyl]methyl]-1-methylindol-5-yl]carbamate
Molecular formula	C₃₁H₃₃N₃O₆S
Molecular weight	575.7 g/mol
Exact mass	575.209
Grade	Reference Standard
HSN code	38229090
InChIKey	YEEZWCHGZNKEEK-UHFFFAOYSA-N
SMILES	CC1=CC=CC=C1S(=O)(=O)NC(=O)C2=CC(=C(C=C2)CC3=CN(C4=C3C=C(C=C4)NC(=O)OC5CCCC5)C)OC
PubChem CID	5717

Physical properties
Physical form	Solid
LogP (XLogP3)	5.5
H-bond donors / acceptors	2 / 6
TPSA	124 Å²
Synonyms	Anhydrous Crystalline Zafirlukast, Zafirlukast Crystalline Monohydrate, Accolate, Cyclopentyl 3-(2-methoxy-4-((o-tolylsulfonyl)carbamoyl)benzyl)-1-methylindole-5-carbamate, cyclopentyl 3-[2-methoxy-4-[(o-tolylsulfonyl)carbamoyl]benzyl]-1-methylindole-5-carbamate, Zafirlukast(Accolate), Zafirlukast - Bio-X trade mark

Safety & hazard information (GHS)

Hazard statements

H413May cause long lasting harmful effects to aquatic life

Precautionary statements: P273, 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

Frequently asked questions

What is the CAS number of Zafirlukast?

The CAS Registry Number of Zafirlukast is 107753-78-6. It is also known as Anhydrous Crystalline Zafirlukast, Zafirlukast Crystalline Monohydrate, Accolate.

What is the molecular formula and molecular weight of Zafirlukast?

Zafirlukast has the molecular formula C31H33N3O6S and a molecular weight of 575.7 g/mol. Its IUPAC name is cyclopentyl N-[3-[[2-methoxy-4-[(2-methylphenyl)sulfonylcarbamoyl]phenyl]methyl]-1-methylindol-5-yl]carbamate.

What is Zafirlukast used for?

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

We supply Zafirlukast 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 Zafirlukast?

Yes. Every lot of Zafirlukast 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 Zafirlukast be shipped internationally?

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