81513-74-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81513-74-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,5,1 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 81513-74:
(7*8)+(6*1)+(5*5)+(4*1)+(3*3)+(2*7)+(1*4)=118
118 % 10 = 8
So 81513-74-8 is a valid CAS Registry Number.