128916-17-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128916-17-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,1 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 128916-17:
(8*1)+(7*2)+(6*8)+(5*9)+(4*1)+(3*6)+(2*1)+(1*7)=146
146 % 10 = 6
So 128916-17-6 is a valid CAS Registry Number.