1616116-22-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1616116-22-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,6,1,1 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1616116-22:
(9*1)+(8*6)+(7*1)+(6*6)+(5*1)+(4*1)+(3*6)+(2*2)+(1*2)=133
133 % 10 = 3
So 1616116-22-3 is a valid CAS Registry Number.