1002-22-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1002-22-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,0,0 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1002-22:
(6*1)+(5*0)+(4*0)+(3*2)+(2*2)+(1*2)=18
18 % 10 = 8
So 1002-22-8 is a valid CAS Registry Number.