You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,3aS,7aS)-7a-methyl-1-[1-[5,5,5-trifluoro-4-hydroxy-4-(trifluoromethyl)pent-2-ynyl]cyclopropyl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-one The above is the IUPAC name of a molecule. Write its molecular formula.
user
C19H22F6O2
assistant