71104-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71104-17-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,1,0 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 71104-17:
(7*7)+(6*1)+(5*1)+(4*0)+(3*4)+(2*1)+(1*7)=81
81 % 10 = 1
So 71104-17-1 is a valid CAS Registry Number.