741-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 741-57-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,4 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 741-57:
(5*7)+(4*4)+(3*1)+(2*5)+(1*7)=71
71 % 10 = 1
So 741-57-1 is a valid CAS Registry Number.