The molecule is a 5-oxo-2-furylacetic acid having a carboxy group at the 2-position. It is a furoic acid and a 5-oxo-2-furylacetic acid. It is a conjugate acid of a 2-(carboxylatomethyl)-5-oxo-2,5-dihydro-2-furoate(2-).
2-(carboxymethyl)-5-oxofuran-2-carboxylic acid