113888-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113888-71-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,8,8 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 113888-71:
(8*1)+(7*1)+(6*3)+(5*8)+(4*8)+(3*8)+(2*7)+(1*1)=144
144 % 10 = 4
So 113888-71-4 is a valid CAS Registry Number.