SMILES: C1=CC(=C(C=C1CC(=O)O)[N+](=O)[O-])O
Description: The molecule is a monocarboxylic acid that is acetic acid carrying a 2-hydroxy-3-nitrophenyl substituent at C-2. It has a role as a hapten. It is a conjugate acid of a (4-hydroxy-3-nitrophenyl)acetate.