16118-31-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16118-31-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,1,1 and 8 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16118-31:
(7*1)+(6*6)+(5*1)+(4*1)+(3*8)+(2*3)+(1*1)=83
83 % 10 = 3
So 16118-31-3 is a valid CAS Registry Number.