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142522-81-4

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142522-81-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142522-81-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,5,2 and 2 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 142522-81:
(8*1)+(7*4)+(6*2)+(5*5)+(4*2)+(3*2)+(2*8)+(1*1)=104
104 % 10 = 4
So 142522-81-4 is a valid CAS Registry Number.

142522-81-4SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 16, 2017

Revision Date: Aug 16, 2017

1.Identification

1.1 GHS Product identifier

Product name sodium,2-[1-[[(1R)-1-[3-[2-(7-chloroquinolin-2-yl)ethenyl]phenyl]-3-[2-(2-hydroxypropan-2-yl)phenyl]propyl]sulfanylmethyl]cyclopropyl]acetate

1.2 Other means of identification

Product number -
Other names Montelukast sodium

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:142522-81-4 SDS

142522-81-4Upstream product

142522-81-4Downstream Products

142522-81-4Relevant articles and documents

PROCESS FOR THE PREPARATION OF SODIUM SALT OF L-(((L(R)-(3-(2-(7-CHLORO-2- QUINOLINYL)-ETHENYL)PHENYL)-3-(2-(L-HYDROXY-L- METHYLETHYL)PHENYL)PROPYL)SULFANYL)METHYL)CYCLOPROPANEACETIC ACID

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Page/Page column 12, (2009/01/20)

The invention relates to a novel process for the preparation of Sodium salt of 1- (((l(R)-(3-(2-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-(2-(l-hydroxy-l- methylethyl)phenyl) propyl)sulfanyl)methyl)cyclopropaneacetic acid wherein the crystalline forms of methanesulfonate and Montelukast are not isolated. Furthermore, the invention relates to a novel process for preparing salt of 1-(((1(R)- (3-(2-(7-chloro-2-quinolinyl)-ethenyl)phenyl)-3-(2-(l-hydroxy-l- methylethyl)phenyl)propyl)sulfanyl)methyl)cyclopropaneacetic acid with tert- butylamine and the method for its purification to achieve pharmaceutical purity.

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