317-73-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 317-73-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 3,1 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 317-73:
(5*3)+(4*1)+(3*7)+(2*7)+(1*3)=57
57 % 10 = 7
So 317-73-7 is a valid CAS Registry Number.