You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 2-[3-[(Z)-3-oxoprop-1-enyl]oxiran-2-yl]ethyl 2-[[diethoxy(oxido)phosphaniumyl]methyl]benzoate into its molecular formula.
user
C19H25O7P
assistant