28112-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28112-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,1,1 and 2 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 28112-78:
(7*2)+(6*8)+(5*1)+(4*1)+(3*2)+(2*7)+(1*8)=99
99 % 10 = 9
So 28112-78-9 is a valid CAS Registry Number.