2,4-Decadienoic acid, 4'-ester with 9-(2,6-dideoxy-beta-D-arabino-hexopyranosyl)-4a,12b-dihydro-4a,8,12b-trihydroxy-3-methylbenz(a)anthracene-1,7,12(4H)-trione 97937-29-6 AC 54 Antibiotic AC54 Capoamycin Capomycin