21(R)-Hydroxy montelukast

BGC Id:	274259940511
CAS No:	184763-26-6
Synonyms:	21(r)-hydroxy montelukast ; [r-[r,r-(e)]]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-hydroxy-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-cyclopropaneacetic aci ; [r-[r,r-(e)]]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-hydroxy-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-cyclopropaneacetic acid ; montelukast m5b
Molecular Formula:	C35H36ClNO4S
Molecular Weight:	602.191
EINECS:

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Leap Chem Co., Ltd

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The last intensive check and update was carried out on 2025/10/03.

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Synonyms:

21(r)-hydroxy montelukast ; [r-[r*,r*-(e)]]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-hydroxy-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-cyclopropaneacetic aci ; [r-[r*,r*-(e)]]-1-[[[1-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-hydroxy-3-[2-(1-hydroxy-1-methylethyl)phenyl]propyl]thio]methyl]-cyclopropaneacetic acid ; montelukast m5b

CAS:

184763-26-6

EINECS:

Molecular Formula:

C35H36ClNO4S

MDL:

SMILES:

COP(=O)(CC(C)=O)OC

Properties

Molecular Weight:

602.191 g·mol−1

Melting point:

76-81 °C

Safety Information

Hazard Classes:

Storage temperature:

Amber Vial, -20 °C Freezer, Under Inert Atmosphere

The following providers cannot be verified precisely. The companies have offered the product in the past, but despite all care, the companies could not confirm it 100 percent!

Santa Cruz Biotechnology, Inc.

Santa Cruz Biotechnology, Inc. now offers over 140,000 specialty biochemicals under our ChemCruz™ brand. Santa Cruz Biotechnology, Inc. is focused... Request

What other providers are available for CAS 184763-26-6?

In addition to the providers presented here for 21(R)-Hydroxy montelukast with the CAS number 184763-26-6, there are other 2 providers with slightly different product names available for this CAS number.

Montelukast EP Impurity I

+1 additional providers that we know from the past

2-[1-({[(1R,3S)-1-{3-[(E)-2-(7-chloroquinolin-2-yl)ethenyl]phenyl}-3-hydroxy-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanyl}methyl)cyclopropyl]acetic acid

+1 additional providers that we know from the past