1312993-47-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1312993-47-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,1,2,9,9 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1312993-47:
(9*1)+(8*3)+(7*1)+(6*2)+(5*9)+(4*9)+(3*3)+(2*4)+(1*7)=157
157 % 10 = 7
So 1312993-47-7 is a valid CAS Registry Number.
1312993-47-7Relevant articles and documents
PROCESS FOR THE PREPARATION OF MONTELUKAST AND SALTS THEREOF
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, (2012/10/18)
The present invention relates to an improved process for the preparation of Montelukast and pharmaceutical acceptable salts or derivatives thereof, in particular to a process for large scale production of Montelukast and salts thereof in high yield and high purity and pharmaceutical preparations containing said compounds.
