4405-05-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4405-05-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,0 and 5 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4405-05:
(6*4)+(5*4)+(4*0)+(3*5)+(2*0)+(1*5)=64
64 % 10 = 4
So 4405-05-4 is a valid CAS Registry Number.