77931-35-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77931-35-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,9,3 and 1 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77931-35:
(7*7)+(6*7)+(5*9)+(4*3)+(3*1)+(2*3)+(1*5)=162
162 % 10 = 2
So 77931-35-2 is a valid CAS Registry Number.