7022-08-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7022-08-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,0,2 and 2 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 7022-08:
(6*7)+(5*0)+(4*2)+(3*2)+(2*0)+(1*8)=64
64 % 10 = 4
So 7022-08-4 is a valid CAS Registry Number.