1,5-Bis((4-methylphenyl)amino)anthraquinone 1,5-Di-p-toluidinoanthraquinone 82-20-2 9,10-Anthracenedione, 1,5-bis((4-methylphenyl)amino)- Anthraquinone, 1,5-di-p-toluidino- (8CI) EINECS 201-403-6 NSC 13985 Violet 3R base