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 (6S)-6-bromo-2-fluoro-N-(4-fluoro-3-methylphenyl)-3-[(3-methyloxetan-3-yl)sulfamoyl]cyclohexa-1,3-diene-1-carboxamide ?
user
C18H19BrF2N2O4S
assistant