27220-59-3 8-Butyl-3-(3-formamido-2-hydroxybenzamido)-2,6-dimethyl-4,9-dioxo-1,5-dioxonan-7-yl butyrate Antimycin A4 Butyric acid, N-ester with N-(7-butyl-8-hydroxy-4,9-dimethyl-2,6-dioxo-1,6-dioxonan-3-yl)-3-formamidosalicylamide EINECS 248-343-7