You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3R)-1-butyl-3-[(R)-cyclohexyl(hydroxy)methyl]-9-(2,3-dihydro-1,4-benzodioxin-6-ylmethyl)-1,4,9-triazaspiro[5.5]undecane-2,5-dione by IUPAC nomenclature, provide its molecular formula.
user
C28H41N3O5
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