Fumaric Acid

Fumaric acid or trans-butenedioic acid is the chemical compound with the formula HO₂CCH=CHCO₂H. This white crystalline compound is one of two isomericunsaturated dicarboxylic acids, the other being maleic acid. In fumaric acid the carboxylic acid groups are trans (E) and in maleic acid they are cis (Z). Fumaric acid has afruit-like taste. The salts and esters are known as fumarates. Dimethyl fumarate significantly reduces disability progression in multiple sclerosis.