408339-42-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 408339-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,8,3,3 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 408339-42:
(8*4)+(7*0)+(6*8)+(5*3)+(4*3)+(3*9)+(2*4)+(1*2)=144
144 % 10 = 4
So 408339-42-4 is a valid CAS Registry Number.