Ablukast

Also known as: Ro 23-3544, Ro-23-3544, UNII-000TKM5BBQ, Ablukastum, Ablukast (USAN/INN), Ablukast (Ro23-3544), (+-)-6-Acetyl-7-((5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentyl)oxy)-2-chromancarboxylic acid, 6-acetyl-7-{[5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentyl]oxy}-3,4-dihydro-2H-chromene-2-carboxylic acid, 6-acetyl-7-[5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentoxy]-3,4-dihydro-2H-chromene-2-carboxylic acid, 6-Acetyl-7-[5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentyloxy]-3,4-dihydro-2H-1-benzopyran-2-carboxylic acid, 7-[5-(4-acetyl-3-hydroxy-2-propylphenoxy)-pentyloxy]-6-acetyl-3,4-dihydro-2H-1-benzopyran-2-carboxylic acid, rac-6-acetyl-7-<<5-(4-acetyl-3-hydroxy-2-propylphenoxy)pentyl>oxy>-3,4-dihydro-2H-1-benzopyran-2-carboxylic acid

Ablukast (CAS 96566-25-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C28H34O8 and a molecular weight of 498.56500 g/mol. Key properties include a boiling point of 730.8ºC at 760mmHg, a density of 1.219g/cm3 and a flash point of 240.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 96566-25-5
Jingsj CID: J-1973884-2
Molecular Formula: C₂₈H₃₄O₈
Molecular Weight: 498.56500 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	730.8ºC at 760mmHg
Density	1.219g/cm3
Flash Point	240.9ºC
Exact Mass	498.22500
PSA	119.36000
LogP	5.15620
Refractive Index	1.567

Activity & Biological Data

Target	LTD4
Additional Information	[1]. M O'Donnell, et al. Pharmacological profile of Ro 23-3544, a new aerosol active leukotriene receptor antagonist. Adv Prostaglandin Thromboxane Leukot Res. 1987;17A:512-8. [2]. T Rosenbach, et al. Studies on the role of leukotrienes in murine allergic and irritant contact dermatitis. Br J Dermatol. 1988 Jan;118(1):1-6. [3]. Hans-Michael Eggenweiler, et al. Pyrrolopyrimidines as phosphodiesterase VII inhibitors. US7498334B2.

Target

LTD4

Additional Information

[1]. M O'Donnell, et al. Pharmacological profile of Ro 23-3544, a new aerosol active leukotriene receptor antagonist. Adv Prostaglandin Thromboxane Leukot Res. 1987;17A:512-8. [2]. T Rosenbach, et al. Studies on the role of leukotrienes in murine allergic and irritant contact dermatitis. Br J Dermatol. 1988 Jan;118(1):1-6. [3]. Hans-Michael Eggenweiler, et al. Pyrrolopyrimidines as phosphodiesterase VII inhibitors. US7498334B2.

Frequently Asked Questions

What is the CAS number of Ablukast?

The CAS number of Ablukast is 96566-25-5.

What are the molecular formula and molecular weight of Ablukast?

Ablukast has molecular formula C28H34O8 and molecular weight 498.56500 g/mol.

What are the upstream and downstream products of Ablukast?

For Ablukast, Upstream Products: Ethyl 7-hydroxy-4-oxo-4H-chromene-2-carboxylate, 1,5-Dibromopentane, 2,4-Dihydroxyacetophenone.

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. "Ablukast (CAS 96566-25-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1973884-2 (accessed 2026-11-09).

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