128118-40-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 128118-40-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,1,1 and 8 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128118-40:
(8*1)+(7*2)+(6*8)+(5*1)+(4*1)+(3*8)+(2*4)+(1*0)=111
111 % 10 = 1
So 128118-40-1 is a valid CAS Registry Number.