Montelukast
Also known as: Montelukast Acid, Singular, Montair, Brondilat, 2-[1-[[(1R)-1-[3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetic acid, (R-(E))-1-(((1-(3-(2-(7-chloro-2-quinolinyl)ethenyl)phenyl)-3-(2-(1-hydroxy-1-methylethyl)phenyl)propyl)thio)methyl)cyclopropaneacetic acid
Montelukast (CAS 158966-92-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C35H36ClNO3S and a molecular weight of 586.183 g/mol. Key properties include a boiling point of 750.5±60.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 407.7±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 158966-92-8
- Jingsj CID
- J-49217-1
- Molecular Formula
- C35H36ClNO3S
- Molecular Weight
- 586.183 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 750.5±60.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 407.7±32.9 °C |
| Exact Mass | 585.210449 |
| PSA | 95.72000 |
| LogP | 7.80 |
| Vapor Pressure | 0.0±2.6 mmHg at 25°C |
| Refractive Index | 1.678 |
| Storage Conditions | 2-8°C |
Activity & Biological Data
| Target | CysLT1 |
|---|---|
| Additional Information | [1]. Pu S, et, al. Montelukast Prevents Mice Against Acetaminophen-Induced Liver Injury. Front Pharmacol. 2019 Sep 18; 10:1070. [2]. William RHJ, et, al. A role for cysteinyl leukotrienes in airway remodeling in a mouse asthma model. Am J Respir Crit Care Med. 2002 Jan 1; 165(1): 108-16. |
Frequently Asked Questions
What is the CAS number of Montelukast?
The CAS number of Montelukast is 158966-92-8.
What are the molecular formula and molecular weight of Montelukast?
Montelukast has molecular formula C35H36ClNO3S and molecular weight 586.183 g/mol.
What are the upstream and downstream products of Montelukast?
For Montelukast, Upstream Products: 7-chloro-2-ethenylquinoline, 2-[1-(Mercaptomethyl)cyclopropyl]acetic acid, Montelukast sodium; Downstream Products: Montelukast Dicyclohexylamine Salt, Montelukast sodium.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Montelukast (CAS 158966-92-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49217-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.