You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance 6-[5-[difluoro(phosphanyl)methyl]-2-methylphenyl]-4-[4-(trifluoromethyl)phenyl]-1H-1,3,5-triazin-2-one .
user
C18H13F5N3OP
assistant