Trans-2-butene-1,4-dicarboxylic acid

3-Hexenedioic acid is a normal human unsaturated dicarboxylic acid metabolite with increased excretion in patients with Dicarboxylic aciduria caused by fatty acid metabolism disorders The urinary excretion of 3-Hexenedioic acid is increased in conditions of augmented mobilization of fatty acids or inhibited fatty acid oxidation.