409108-99-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 409108-99-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,9,1,0 and 8 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 409108-99:
(8*4)+(7*0)+(6*9)+(5*1)+(4*0)+(3*8)+(2*9)+(1*9)=142
142 % 10 = 2
So 409108-99-2 is a valid CAS Registry Number.