Synonyms: Benzenemethanaminium,N-[4-[[4-(diethylamino)phenyl][4-[ethyl[(3-sulfophenyl)methyl]amino]-2-methylphenyl]methylene]-3-methyl-2,5-cyclohexadien-1-ylidene]-N-ethyl-3-sulfo-,hydroxide, inner salt, aluminum salt; Benzenemethanaminium,N-[4-[[4-(diethylamino)phenyl][4-[ethyl[(3-sulfophenyl)methyl]amino]-2-methylphenyl]methylene]-3-methyl-2,5-cyclohexadien-1-ylidene]-N-ethyl-3-sulfo-,inner salt, aluminum salt (9CI)