You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule 7-bromo-1-(4-butoxy-3-methoxyphenyl)-2-[2-(diethylamino)ethyl]-1H-chromeno[2,3-c]pyrrole-3,9-dione ?
user
C28H33BrN2O5
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