You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Can you give the molecular formula of the molecule [(5S,7S)-3-bromo-5-phenyl-7-(trifluoromethyl)-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrimidin-2-yl]-(4-methylpiperazin-1-yl)methanone ?
user
C19H21BrF3N5O
assistant