809-02-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 809-02-9 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,0 and 9 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 809-02:
(5*8)+(4*0)+(3*9)+(2*0)+(1*2)=69
69 % 10 = 9
So 809-02-9 is a valid CAS Registry Number.