71797-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71797-89-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,7,9 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 71797-89:
(7*7)+(6*1)+(5*7)+(4*9)+(3*7)+(2*8)+(1*9)=172
172 % 10 = 2
So 71797-89-2 is a valid CAS Registry Number.