Itaconic Acid (also called Methylene Succinic Acid) is a white crystalline carboxylic acid obtained by the fermentation of carbohydrates. Tá sé intuaslagtha in uisce, in eatánól agus in aicéatón. Déanann banna soladach neamhsháithithe córas comhcheangailte le grúpa carbóin.