815-22-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 815-22-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 5 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 815-22:
(5*8)+(4*1)+(3*5)+(2*2)+(1*2)=65
65 % 10 = 5
So 815-22-5 is a valid CAS Registry Number.