2′,7′-bis(4-aminophenoxy)-spiro(fluorene-9,9′-xanthene)

2′,7′-bis(4-aminophenoxy)-spiro(fluorene-9,9′-xanthene)

4,4′-[Spiro[fluorene-9,9′-xanthene]-2′,7′-diylbis(oxy)]dianilin

4,4′-[Spiro[fluorene-9,9′-xanthene]-2′,7′-diylbis(oxy)]dianiline

4,4′-[Spiro[fluorene-9,9′-xanthene]-2′,7′-diylbis(oxy)]dianiline

Benzenamine, 4,4′-[spiro[9H-fluorene-9,9′-[9H]xanthene]-2′,7′-diylbis(oxy)]bis-