71517-40-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71517-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,5,1 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71517-40:
(7*7)+(6*1)+(5*5)+(4*1)+(3*7)+(2*4)+(1*0)=113
113 % 10 = 3
So 71517-40-3 is a valid CAS Registry Number.