409104-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 409104-81-0 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 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 409104-81:
(8*4)+(7*0)+(6*9)+(5*1)+(4*0)+(3*4)+(2*8)+(1*1)=120
120 % 10 = 0
So 409104-81-0 is a valid CAS Registry Number.