You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule identified by [1-(3-chlorophenyl)-4-[2-(trifluoromethyl)-6,8-dihydro-5H-pyrido[3,4-d]pyrimidin-7-yl]cyclohexyl]methanamine ?
user
C21H24ClF3N4
assistant