6422-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6422-04-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,4,2 and 2 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 6422-04:
(6*6)+(5*4)+(4*2)+(3*2)+(2*0)+(1*4)=74
74 % 10 = 4
So 6422-04-4 is a valid CAS Registry Number.