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system
Provide the molecular formula for the IUPAC named substance N-(9,9-dimethylfluoren-2-yl)-2',7'-dimethyl-N-(3-phenylphenyl)-9,9'-spirobi[fluorene]-2-amine;N-(9,9-dimethylfluoren-2-yl)-2-phenyl-N-(3-phenylphenyl)-9,9'-spirobi[fluorene]-2'-amine;9,9-dimethyl-N-(2-phenylphenyl)-N-(4-spiro[fluorene-9,7'-fluoreno[4,3-b][1]benzofuran]-1'-ylphenyl)fluoren-2-amine;9,9-dimethyl-N-phenyl-N-(4-spiro[fluorene-9,7'-fluoreno[4,3-b][1]benzofuran]-1'-ylphenyl)fluoren-2-amine;N,4-diphenyl-N-(4-spiro[fluorene-9,7'-fluoreno[4,3-b][1]benzofuran]-1'-ylphenyl)aniline;2-phenyl-N-(4-phenylphenyl)-N-(4-spiro[fluorene-9,7'-fluoreno[4,3-b][1]benzofuran]-1'-ylphenyl)aniline .
user
C350H238N6O4
assistant