The molecule is a 2-oxo monocarboxylic acid anion resulting from the deprotonation of the carboxy group of a 4-(3-hydroxy-1-benzothiophen-2-yl)-2-oxobut-3-enoic acid. It is a member of 1-benzothiophenes and a 2-oxo monocarboxylic acid anion. It derives from a but-3-enoate. It is a conjugate base of a 4-(3-hydroxy-1-benzothiophen-2-yl)-2-oxobut-3-enoic acid.
2-[(E)-3-carboxy-3-oxoprop-1-enyl]-1-benzothiophen-3-olate