72806-87-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72806-87-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,8,0 and 6 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 72806-87:
(7*7)+(6*2)+(5*8)+(4*0)+(3*6)+(2*8)+(1*7)=142
142 % 10 = 2
So 72806-87-2 is a valid CAS Registry Number.