SMILES: CC1=NC=C(C(=C1O)C(=O)O)C=O
Description: The molecule is a pyridinemonocarboxylic acid that is pyridine-4-carboxylic acid substituted by a methyl group, hydroxy group and formyl group at positions 2,3 and 5, respectively. It is a pyridinecarbaldehyde, a monohydroxypyridine, a pyridinemonocarboxylic acid and a member of methylpyridines. It is a conjugate acid of a 5-formyl-3-hydroxy-2-methylpyridine-4-carboxylate.