1-Naphthacenecarboxylic acid, 2-ethyl-6,11-dihydro-5,7-dihydroxy-6,11-dioxo-, methyl ester 1055-56-7 AKLAVINONE,BISANHYDRO Aklavinone, bisanhydro- Antibiotic MA 144F Bis(anhydroaklavinone) Bisanhydroaklavinone NSC114779