77097-79-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77097-79-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,9 and 7 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 77097-79:
(7*7)+(6*7)+(5*0)+(4*9)+(3*7)+(2*7)+(1*9)=171
171 % 10 = 1
So 77097-79-1 is a valid CAS Registry Number.