When heated with concentrated hydrobromic or hydriodic acids, it is converted into fumaric acid.
fumaric acid is found in fumitory (Fumaria officinalis), in various fungi (Agaricus piperatus, &c.), and in Iceland moss.
fumaric acid fu·mar·ic acid (fyōō-mār'ĭk)
An organic acid that is formed from succinic acid and is an intermediate in the Krebs cycle.
A colorless crystalline compound found in various plants and produced synthetically. It is used mainly in resins, paints, varnishes, and inks. Fumaric acid is a geometric isomer of maleic acid, having two carboxyl (COOH) groups attached on opposite sides of an ethylene chain. Chemical formula: C4H4O2.