16686-31-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16686-31-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,8 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16686-31:
(7*1)+(6*6)+(5*6)+(4*8)+(3*6)+(2*3)+(1*1)=130
130 % 10 = 0
So 16686-31-0 is a valid CAS Registry Number.