You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(3,4-dichlorophenyl)-2-methyl-4-(4-methylidenepiperidin-1-yl)-N-(2,2,2-trifluoro-1-phenylethyl)butanamide;ethane;methylsulfonylmethane is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H39Cl2F3N2O3S
assistant