196812-16-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 196812-16-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,6,8,1 and 2 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 196812-16:
(8*1)+(7*9)+(6*6)+(5*8)+(4*1)+(3*2)+(2*1)+(1*6)=165
165 % 10 = 5
So 196812-16-5 is a valid CAS Registry Number.