The molecule is a tensyuic acid that is itaconic acid which has been substituted at position 3 by a 3-(ethoxycarbonyl)propyl group. The (-)-isomer, isolated from Aspergillus niger FKI-2342. It has a role as an Aspergillus metabolite. It is a tensyuic acid, an ethyl ester and a dicarboxylic acid.
2-(4-ethoxy-4-oxobutyl)-3-methylidenebutanedioic acid