1431322-88-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1431322-88-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,3,2 and 2 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1431322-88:
(9*1)+(8*4)+(7*3)+(6*1)+(5*3)+(4*2)+(3*2)+(2*8)+(1*8)=121
121 % 10 = 1
So 1431322-88-1 is a valid CAS Registry Number.
1431322-88-1Relevant articles and documents
PROCESSES FOR THE PREPARATION OF NOVEL BENZIMIDAZOLE DERIVATIVES
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, (2013/05/09)
The present invention relates to processes and intermediates for the preparation of novel benzimidazole derivatives, especially in the synthesis of hepatits C virus NS5A inhibitors. In particular, the present invention relates to processes and intermediates for the preparation of compounds of formulae (I-a):
