You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-(3,5-dimethylphenyl)-3-[ethyl(2-pyridin-4-ylethyl)amino]-4-(4-methoxyphenyl)pyrrole-2,5-dione The above is the IUPAC name of a molecule. Write its molecular formula.
user
C28H29N3O3
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