Keywords: Oxaloacetic-acid-enol-3D-balls.png Ball-and-stick model of the oxaloacetic acid molecule a carboxylic acid that is an intermediate in biological systems shown here in its enol form also known as hydroxyfumaric acid Derived from File Fumaric-acid-3D-balls png and File Ethenol-3D-balls png 2010-07-28 Jynto and Ben Mills Oxaloacetic acid Enols Intermediates Images by Jynto |