409112-16-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 409112-16-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,9,1,1 and 2 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 409112-16:
(8*4)+(7*0)+(6*9)+(5*1)+(4*1)+(3*2)+(2*1)+(1*6)=109
109 % 10 = 9
So 409112-16-9 is a valid CAS Registry Number.