You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(5R)-3-(1,3-benzodioxol-5-ylmethyl)-5-ethyl-5-[1-[(4-methoxy-3-methylphenyl)methyl]piperidin-4-yl]imidazolidine-2,4-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H33N3O5
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