12227-47-3 2,2'-(1,3,4-Oxadiazole-2,5-diyl)bis(1-aminoanthraquinone) 52591-25-0 9,10-Anthracenedione, 2,2'-(1,3,4-oxadiazole-2,5-diyl)bis(1-amino- EINECS 258-029-1