724457-54-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 724457-54-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,4,4,5 and 7 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 724457-54:
(8*7)+(7*2)+(6*4)+(5*4)+(4*5)+(3*7)+(2*5)+(1*4)=169
169 % 10 = 9
So 724457-54-9 is a valid CAS Registry Number.