445-80-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 445-80-7 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,4 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 445-80:
(5*4)+(4*4)+(3*5)+(2*8)+(1*0)=67
67 % 10 = 7
So 445-80-7 is a valid CAS Registry Number.