89957-88-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89957-88-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,5 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89957-88:
(7*8)+(6*9)+(5*9)+(4*5)+(3*7)+(2*8)+(1*8)=220
220 % 10 = 0
So 89957-88-0 is a valid CAS Registry Number.