743457-51-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 743457-51-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,4,3,4,5 and 7 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 743457-51:
(8*7)+(7*4)+(6*3)+(5*4)+(4*5)+(3*7)+(2*5)+(1*1)=174
174 % 10 = 4
So 743457-51-4 is a valid CAS Registry Number.