2-NP-AOZ is a derivatized metabolite of the nitrofuran antiprotozoal and antibacterial agent furazolidone .1 It is formed from the tissue-bound furazolidone metabolite 3-amino-2-oxazolidinone (AOZ) after acid hydrolysis and derivatization with o-nitrobenzaldehyde (o-NBA). 2-NP-AOZ has been used as a marker of furazolidone use in pigs.2
1.Hoogenboom, L.A., Berghmans, T.H., Polman, T.H., et al.Depletion of protein-bound furazolidone metabolites containing the 3-amino-2-oxazolidinone side-chain from liver, kidney and muscle tissues from pigsFood Addit. Contam.9(6)623-630(1992)
















