Synonyms: A 128;A-128;Antibiotic 128;C-159;NSC 235069;TELOMYCIN;beta-aspartyl-N-{[1,19-dihydroxy-12-(1-hydroxyethyl)-24-(1-hydroxy-2-methylpropyl)-27-[1-(1H-indol-3-yl)ethyl]-30-(1H-indol-3-ylmethylidene)-9,16-dimethyl-5,8,11,14,18,23,26,29,32-nonaoxotriacontahydro-18H-dipyrrolo[2,1-c:2',1'-o][1,4,7,10,13,16,19,22,25]oxaoctaazacyclooctacosin-15-yl]methyl}serinamide