831-89-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 831-89-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,3 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 831-89:
(5*8)+(4*3)+(3*1)+(2*8)+(1*9)=80
80 % 10 = 0
So 831-89-0 is a valid CAS Registry Number.