You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[2-[4-(2,5-dimethoxyphenyl)-4H-pyrrolo[1,2-a]quinoxalin-5-yl]-2-oxoethyl]-4-hexyl-N-propan-2-ylbenzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C37H43N3O4
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