81196-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81196-16-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,9 and 6 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 81196-16:
(7*8)+(6*1)+(5*1)+(4*9)+(3*6)+(2*1)+(1*6)=129
129 % 10 = 9
So 81196-16-9 is a valid CAS Registry Number.