Synonyms: Coumalicacid, 4,6-dimethyl- (6CI);Glutaconic acid, 4-(1-hydroxyethylidene)-3-methyl-, d-lactone (7CI);2-Pentenedioicacid, 4-(1-hydroxyethylidene)-3-methyl-, d-lactone;4,6-Dimethylcoumalic acid;Acetic acid,isodehydro-;Isodehydracetic acid;Isodehydroacetic acid;NSC 34551;NSC 408066;