Synonyms: ActinomycinD, 3A-(4-oxo-L-proline)-;1H-Pyrrolo[2,1-i][1,4,7,10,13]oxatetraazacyclohexadecine, cyclic peptidederiv.; 3H-Phenoxazine, actinomycin D deriv.; 3H-Phenoxazine-1,9-dicarboxamide,2-amino-N1-[hexadecahydro-2,5,9-trimethyl-6,13-bis(1-methylethyl)-1,4,7,11,14,17-hexaoxo-1H-pyrrolo[2,1-i][1,4,7,10,13]oxatetraazacyclohexadecin-10-yl]-N9-[hexadecahydro-2,5,9-trimethyl-6,13-bis(1-methylethyl)-1,4,7,11,14-pentaoxo-1H-pyrrolo[2,1-i][1,4,7,10,13]oxatetraazacyclohexadecin-10-yl]-4,6-dimethyl-3-oxo-;Actinomycin X2