3020-02-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3020-02-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,0,2 and 0 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 3020-02:
(6*3)+(5*0)+(4*2)+(3*0)+(2*0)+(1*2)=28
28 % 10 = 8
So 3020-02-8 is a valid CAS Registry Number.