4255-80-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4255-80-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,5 and 5 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4255-80:
(6*4)+(5*2)+(4*5)+(3*5)+(2*8)+(1*0)=85
85 % 10 = 5
So 4255-80-5 is a valid CAS Registry Number.