Aconitic

Ac·o·nit·ic

Of or pertaining to aconite.
Pert. to or designating a crystalline tribasic acid, C6H6O6, obtained from aconite and other plants. It is a carboxyl derivative of itaconic acid. Both the natural forma from plants and the form prepared chemically have the trans-configuration. It is used in the manufacture of itaconic acid (propylene dicarboxylic acid). (Chem.)