You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
12-(5-bromothiophen-2-yl)-2,2-difluoro-5,11-dimethyl-4-thiophen-2-yl-3-aza-1-azonia-2-boranuidatricyclo[7.3.0.03,7]dodeca-1(12),4,6,8,10-pentaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C19H14BBrF2N2S2
assistant