You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
methyl 5-[3-methyl-5-[[4-(trifluoromethyl)pyrimidin-2-yl]amino]phenyl]pyridine-2-carboxylate is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H15F3N4O2
assistant