You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,3-bis(2,4,6-trimethylphenyl)-2H-imidazol-2-ide;1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ide;dichloro-(3-phenylinden-1-ylidene)ruthenium;dichloro(phenylsulfanylmethylidene)ruthenium;9-(2-methylpropyl)-9-phosphoniabicyclo[3.3.1]nonane;tricyclohexylphosphanium is the IUPAC name of a molecule. Please give its molecular formula.
user
C287H417Cl12N6P9Ru6S2+6
assistant