143408-53-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 143408-53-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,4,0 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 143408-53:
(8*1)+(7*4)+(6*3)+(5*4)+(4*0)+(3*8)+(2*5)+(1*3)=111
111 % 10 = 1
So 143408-53-1 is a valid CAS Registry Number.