You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3-(7H-benzo[e]perimidin-2-yl)-3-azahexacyclo[15.7.0.02,10.04,9.011,16.018,23]tetracosa-1(17),2(10),4,6,8,11,13,15,18,20,22-undecaene;3-(7H-benzo[f]perimidin-5-yl)-3-azahexacyclo[15.7.0.02,10.04,9.011,16.018,23]tetracosa-1(17),2(10),4,6,8,11,13,15,18,20,22-undecaene;5-carbazol-9-yl-7H-benzo[f]perimidine;9-carbazol-9-yl-7H-phenaleno[2,1-d]pyrimidine;10-carbazol-9-yl-7H-phenaleno[1,2-d]pyrimidine;1,2-diethylbenzene;ethane is the IUPAC name of a molecule. Please give its molecular formula.
user
C237H289N15
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