You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
dimethyl 6-(4,5-dihydro-1H-imidazol-2-ylsulfanylmethyl)-2-methyl-4-[3-(trifluoromethyl)phenyl]-3,4-dihydropyridine-3,5-dicarboxylate The above is the IUPAC name of a molecule. Write its molecular formula.
user
C21H22F3N3O4S
assistant