1089123-03-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1089123-03-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,8,9,1,2 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1089123-03:
(9*1)+(8*0)+(7*8)+(6*9)+(5*1)+(4*2)+(3*3)+(2*0)+(1*3)=144
144 % 10 = 4
So 1089123-03-4 is a valid CAS Registry Number.