724741-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 724741-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,2,4,7,4 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 724741-57:
(8*7)+(7*2)+(6*4)+(5*7)+(4*4)+(3*1)+(2*5)+(1*7)=165
165 % 10 = 5
So 724741-57-5 is a valid CAS Registry Number.