516-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 516-52-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,1 and 6 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 516-52:
(5*5)+(4*1)+(3*6)+(2*5)+(1*2)=59
59 % 10 = 9
So 516-52-9 is a valid CAS Registry Number.