118216-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 118216-31-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,8,2,1 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 118216-31:
(8*1)+(7*1)+(6*8)+(5*2)+(4*1)+(3*6)+(2*3)+(1*1)=102
102 % 10 = 2
So 118216-31-2 is a valid CAS Registry Number.