422-28-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 422-28-6 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,2 and 2 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 422-28:
(5*4)+(4*2)+(3*2)+(2*2)+(1*8)=46
46 % 10 = 6
So 422-28-6 is a valid CAS Registry Number.