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1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone

1-[3-[(1E)-2-(7-氯-2-喹啉基)乙烯基]苯基]-3-[2-(1-羟基-1-甲基乙基)苯基]-1-丙酮

Also known as: Montelukast Ketone Impurity, Montelukast Ketone Impurity (USP), Montelukast Impurity 10, Montelukast Impurity 1, Montelukast Sodium Impurity A, Montelukast Related Impurity 1, 1-[3-[(E)-2-(7-Chloro-2-quinolinyl)vinyl]phenyl]-3-[2-(2-hydroxy-2-propanyl)phenyl]-1-propanone, (E)-1-(3-(2-(7-chloroquinolin-2-yl)vinyl)phenyl)-3-(2-(2-hydroxypropan-2-yl)phenyl)propan-1-one

1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone (CAS 1258428-71-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C29H26ClNO2 and a molecular weight of 455.975 g/mol. It is also known as Montelukast Ketone Impurity, Montelukast Ketone Impurity (USP) and Montelukast Impurity 10. Key properties include a boiling point of 651.5±55.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 347.8±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1258428-71-5
Jingsj CID
J-1973314-8
Molecular Formula
C29H26ClNO2
Chinese Name
1-[3-[(1E)-2-(7-氯-2-喹啉基)乙烯基]苯基]-3-[2-(1-羟基-1-甲基乙基)苯基]-1-丙酮
Molecular Weight
455.975 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point651.5±55.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point347.8±31.5 °C

Frequently Asked Questions

What is the CAS number of 1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone?

The CAS number of 1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone is 1258428-71-5.

What are the molecular formula and molecular weight of 1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone?

1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone has molecular formula C29H26ClNO2 and molecular weight 455.975 g/mol.

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

Last updated:

How to cite: Jingsj. "1-[3-[(1E)-2-(7-Chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(1-hydroxy-1-methylethyl)phenyl]-1-propanone (CAS 1258428-71-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1973314-8 (accessed 2026-10-25).

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