800409-00-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 800409-00-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,0,4,0 and 9 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 800409-00:
(8*8)+(7*0)+(6*0)+(5*4)+(4*0)+(3*9)+(2*0)+(1*0)=111
111 % 10 = 1
So 800409-00-1 is a valid CAS Registry Number.