515-65-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 515-65-1 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 5 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 515-65:
(5*5)+(4*1)+(3*5)+(2*6)+(1*5)=61
61 % 10 = 1
So 515-65-1 is a valid CAS Registry Number.