IUPAC:(19S)-8-[(dimethylamino)methyl]-19-ethyl-7-hydroxy-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.0^{2,11}.0^{4,9}.0^{15,20}]henicosa-1(21),2,4,6,8,10,15(20)-heptaen-19-yl 2-{[(2,4,5,7-tetranitro-9H-fluoren-9-ylidene)amino]oxy}propanoate
IUPAC:(19S)-8-[(dimethylamino)methyl]-19-ethyl-7-hydroxy-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.0^{2,11}.0^{4,9}.0^{15,20}]henicosa-1(21),2,4,6,8,10,15(20)-heptaen-19-yl 2-{[(2,4,5,7-tetranitro-9H-fluoren-9-ylidene)amino]oxy}propanoate