18968-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 18968-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,9,6 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 18968-71:
(7*1)+(6*8)+(5*9)+(4*6)+(3*8)+(2*7)+(1*1)=163
163 % 10 = 3
So 18968-71-3 is a valid CAS Registry Number.