You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Under IUPAC nomenclature, a molecule named (E)-N-[(4R)-2,2-diethyl-3,4-dihydrochromen-4-yl]-3-(2,3,4-trimethoxyphenyl)prop-2-enamide is given. What is its corresponding molecular formula?
user
C25H31NO5
assistant