Zafirlukast

Also known as: Accolate, Vanticon, ICI 204219, Cyclopentyl 3-[2-methoxy-4-[(o-tolylsulfonyl)carbamoyl]benzyl]-1-methylindole-5-carbamate, Cyclopentyl [3-[2-Methoxy-4-[(o-tolylsulfonyl)carbamoyl]benzyl]-1-methyl-1H-indol-5-yl]carbamate, Cyclopentyl (3-(2-methoxy-4-((o-tolylsulfonyl)carbamoyl)benzyl)-1-methyl-1H-indol-5-yl)carbamate, 4-[5-(Cyclopentyloxycarbonylamino)-1-methyl-1H-indol-3-ylmethyl]-3-methoxy-N-(2-methylphenylsulfonyl)benzamide, Carbamic acid, [3-[[2-methoxy-4-[[[(2-methylphenyl)sulfonyl]amino]carbonyl]phenyl]methyl]-1-methyl-1H-indol-5-yl]-, cyclopentyl ester, MFCD00864775

Zafirlukast (CAS 107753-78-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C31H33N3O6S and a molecular weight of 575.675 g/mol. Key properties include a melting point of 139°C and a density of 1.3±0.1 g/cm3. GHS hazard statements: H413. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 107753-78-6
Jingsj CID: J-32457-2
Molecular Formula: C₃₁H₃₃N₃O₆S
Molecular Weight: 575.675 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	139°C
Density	1.3±0.1 g/cm3
Exact Mass	575.208984
PSA	131.09000
LogP	6.15
Refractive Index	1.641
Storage Conditions	Refrigerator

GHS Safety & Compliance

H413

Activity & Biological Data

Target	LTD4
Additional Information	[1]. Finnerty JP, et al. Role of leukotrienes in exercise-induced asthma. Inhibitory effect of ICI 204219, a potent leukotriene D 4 receptor antagonist. Am Rev Respir Dis. 1992 Apr;145(4 Pt 1):746-9. [2]. Gunning WT, et al. Chemoprevention by lipoxygenase and leukotriene pathway inhibitors of vinyl carbamate-induced lung tumors in mice. Cancer Res. 2002 Aug 1;62(15):4199-201.

Frequently Asked Questions

What is the CAS number of Zafirlukast?

The CAS number of Zafirlukast is 107753-78-6.

What are the molecular formula and molecular weight of Zafirlukast?

Zafirlukast has molecular formula C31H33N3O6S and molecular weight 575.675 g/mol.

Is Zafirlukast hazardous?

Zafirlukast has GHS hazard statements H413.

What are the upstream and downstream products of Zafirlukast?

For Zafirlukast, Upstream Products: 2-Methylbenzene-1-sulfonamide, 4-[[5-[[(Cyclopentyloxy)carbonyl]amino]-1-methyl-1H-indol-3-yl]methyl]-3-methoxybenzoic acid, Methyl 4-(bromomethyl)-3-methoxybenzoate.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Zafirlukast (CAS 107753-78-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32457-2 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.