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1228272-68-1

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1228272-68-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1228272-68-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,2,7 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1228272-68:
(9*1)+(8*2)+(7*2)+(6*8)+(5*2)+(4*7)+(3*2)+(2*6)+(1*8)=151
151 % 10 = 1
So 1228272-68-1 is a valid CAS Registry Number.

1228272-68-1Relevant articles and documents

NOVEL INTERMEDIATES FOR PRODUCING [R-(E)]-1-[[[1-[3-[2-(7- CHLORO -QUINOLINYL)ETHENYL]PHENYL]-3-[2-(1-HYDROXY- METHYLETHYL) PHENYL]PROPYL]THIO] METHYL] CYCLOPROPANEACETIC ACID, MONOSODIUM SALT AND PROCESS THEREOF

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Page/Page column 7; 12; 20; 24-25, (2010/06/20)

Disclosed herein are novel intermediates for producing [R-(E)]-1-[[[1-[3-[2-(7- chloro-2-quinolinyl)ethenyl]phenyl] -3 - [2-(1-hydroxy- 1 -methylethyl) phenyl] propyl]thio] methyl] cyclopropaneacetic acid, monosodium salt (montelukast sodium). Further the invention provides processes for preparing said intermediates.

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