97766-64-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97766-64-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,7,6 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 97766-64:
(7*9)+(6*7)+(5*7)+(4*6)+(3*6)+(2*6)+(1*4)=198
198 % 10 = 8
So 97766-64-8 is a valid CAS Registry Number.