Montelukast Sulfone

孟鲁司特砜

Also known as: montelukast sulphone, Montelukast Impurity 20, 1-[[[1-[3-[2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]sulfonyl]methyl]cyclopropaneacetic acid, Cyclopropaneacetic acid, 1-[[[(1R)-1-[3-[(1E)-2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]sulfonyl]methyl]-, SSYLIWVHJBIYCX-TZIWLTJVSA-N, [R,E]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(hydroxy-1-methylethyl)phenyl]propyl]-sulfonyl]methyl]-cyclopropane acetic acid, {1-[({(1R)-1-{3-[(E)-2-(7-Chloro-2-quinolinyl)vinyl]phenyl}-3-[2-(2-hydroxy-2-propanyl)phenyl]propyl}sulfonyl)methyl]cyclopropyl}acetic acid

Montelukast Sulfone (CAS 1266620-74-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C35H36ClNO5S and a molecular weight of 618.182 g/mol. It is also known as montelukast sulphone, Montelukast Impurity 20 and 1-[[[1-[3-[2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]sulfonyl]methyl]cyclopropaneacetic acid. Key properties include a boiling point of 828.0±65.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 454.5±34.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1266620-74-9
Jingsj CID
J-1515992-2
Molecular Formula
C35H36ClNO5S
Chinese Name
孟鲁司特砜
Molecular Weight
618.182 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point828.0±65.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point454.5±34.3 °C

Frequently Asked Questions

What is the CAS number of Montelukast Sulfone?

The CAS number of Montelukast Sulfone is 1266620-74-9.

What are the molecular formula and molecular weight of Montelukast Sulfone?

Montelukast Sulfone has molecular formula C35H36ClNO5S and molecular weight 618.182 g/mol.

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

Last updated:

How to cite: Jingsj. "Montelukast Sulfone (CAS 1266620-74-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1515992-2 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.