989-80-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 989-80-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 9,8 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 989-80:
(5*9)+(4*8)+(3*9)+(2*8)+(1*0)=120
120 % 10 = 0
So 989-80-0 is a valid CAS Registry Number.