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 methanesulfonic acid;2-methyl-3-[(3-methylphenyl)methyl]-7-(trifluoromethyl)-1,3,3a,4,5,9b-hexahydrobenzo[e]isoindole .
user
C23H28F3NO3S
assistant