Synonyms: Coumalicacid, 4,6-dimethyl-, ethyl ester (6CI); Glutaconic acid,4-(1-hydroxyethylidene)-3-methyl-, d-lactone, ethyl ester (7CI); 5-(Ethoxycarbonyl)-4,6-dimethyl-a-pyrone; Ethyl4,6-dimethyl-5-coumalate; Ethyl isodehydracetate; Ethyl isodehydroacetate; NSC18911; NSC 602920