91767-61-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91767-61-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,6 and 7 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 91767-61:
(7*9)+(6*1)+(5*7)+(4*6)+(3*7)+(2*6)+(1*1)=162
162 % 10 = 2
So 91767-61-2 is a valid CAS Registry Number.