1213516-55-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1213516-55-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,3,5,1 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1213516-55:
(9*1)+(8*2)+(7*1)+(6*3)+(5*5)+(4*1)+(3*6)+(2*5)+(1*5)=112
112 % 10 = 2
So 1213516-55-2 is a valid CAS Registry Number.