97677-97-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 97677-97-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,6,7 and 7 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 97677-97:
(7*9)+(6*7)+(5*6)+(4*7)+(3*7)+(2*9)+(1*7)=209
209 % 10 = 9
So 97677-97-9 is a valid CAS Registry Number.