74205-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74205-71-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,2,0 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74205-71:
(7*7)+(6*4)+(5*2)+(4*0)+(3*5)+(2*7)+(1*1)=113
113 % 10 = 3
So 74205-71-3 is a valid CAS Registry Number.