89939-88-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89939-88-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,3 and 9 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89939-88:
(7*8)+(6*9)+(5*9)+(4*3)+(3*9)+(2*8)+(1*8)=218
218 % 10 = 8
So 89939-88-8 is a valid CAS Registry Number.