You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named ethyl 2-butyl-1-[[4-[2-[5-(methoxymethyl)tetrazol-5-yl]phenyl]phenyl]methyl]-4-oxo-2,3-dihydropyridine-5-carboxylate by IUPAC nomenclature, provide its molecular formula.
user
C28H33N5O4
assistant