72881-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72881-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,8 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 72881-99:
(7*7)+(6*2)+(5*8)+(4*8)+(3*1)+(2*9)+(1*9)=163
163 % 10 = 3
So 72881-99-3 is a valid CAS Registry Number.