72818-45-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72818-45-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,1 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 72818-45:
(7*7)+(6*2)+(5*8)+(4*1)+(3*8)+(2*4)+(1*5)=142
142 % 10 = 2
So 72818-45-2 is a valid CAS Registry Number.