497-80-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 497-80-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,9 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 497-80:
(5*4)+(4*9)+(3*7)+(2*8)+(1*0)=93
93 % 10 = 3
So 497-80-3 is a valid CAS Registry Number.