SMILES: C1=CC(=O)NC=C1C(=O)CCC(=O)[O-]
Description: The molecule is a 4-oxo monocarboxylic acid anion that is the conjugate base of 4-(6-hydroxypyridin-3-yl)-4-oxobutyric acid, obtained by deprotonation of the carboxy group; major species at pH 7.3. It is a conjugate base of a 4-(6-hydroxypyridin-3-yl)-4-oxobutyric acid.