Synonyms: CI 42510, Fuchsin basic, Magenta O, Basic-fuchsin, Rosaniline hydrochloride, 4-((4-Aminophenyl)(4-iminocyclohexa-2,5-dien-1-ylidene)methyl)-2-methylaniline hydrochloride, Fuchsine base monohydrochloride, Basic fuchsin hydrochloride, (4-(4-Aminophenyl)(4-iminocyclohexa-2,5-dienylidene)methyl)-2-methylaniline hydrochloride, Diamondfuchsin, Basic fuchsin, Basic Red 9, Pararosaniline