You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[2-(benzoyloxymethyl)-2-[(5-ethyl-2-phenyl-1,3-dioxan-5-yl)methoxymethyl]butyl] benzoate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C33H38O7
assistant