You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule 2-[[2-(4-chlorophenyl)phenyl]methyl]-N-[4-[[4-(dimethylamino)-1-phenoxybutan-2-yl]amino]-3-nitrophenyl]sulfonyl-3,4-dihydro-1H-pyrazino[1,2-a]indole-8-carboxamide .
user
C43H43ClN6O6S
assistant