1231755-51-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1231755-51-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,1,7,5 and 5 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1231755-51:
(9*1)+(8*2)+(7*3)+(6*1)+(5*7)+(4*5)+(3*5)+(2*5)+(1*1)=133
133 % 10 = 3
So 1231755-51-3 is a valid CAS Registry Number.
1231755-51-3Relevant articles and documents
Improved Process For The Preparation Of Endothelin Receptor Antagonists
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, (2011/11/06)
The present invention relates to improved processes for the preparation of Endothelin receptor antagonists, their salts and intermediates.