You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name [(3R,4R)-3-benzoyl-4-(3-fluoro-2-methylphenyl)-4-(hydroxymethyl)-1-(2-methoxyethyl)piperidin-1-ium-1-yl]-[(3S)-piperidin-3-yl]methanone into its molecular formula.
user
C29H38FN2O4+
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