988-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 988-16-9 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 8 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 988-16:
(5*9)+(4*8)+(3*8)+(2*1)+(1*6)=109
109 % 10 = 9
So 988-16-9 is a valid CAS Registry Number.