987-16-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 987-16-6 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 7 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 987-16:
(5*9)+(4*8)+(3*7)+(2*1)+(1*6)=106
106 % 10 = 6
So 987-16-6 is a valid CAS Registry Number.