404-44-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 404-44-4 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,0 and 4 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 404-44:
(5*4)+(4*0)+(3*4)+(2*4)+(1*4)=44
44 % 10 = 4
So 404-44-4 is a valid CAS Registry Number.