144028-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 144028-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,4,0,2 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 144028-91:
(8*1)+(7*4)+(6*4)+(5*0)+(4*2)+(3*8)+(2*9)+(1*1)=111
111 % 10 = 1
So 144028-91-1 is a valid CAS Registry Number.