2,7-Bis(2-(dimethylamino)ethyl)benzo(lmn)(3,8)phenanthroline-1,3,6,8(2H,7H)-tetrone dihydrobromide 22291-04-9 81254-00-4 Benzo(lmn)(3,8)phenanthroline-1,3,6,8(2H,7H)-tetrone, 2,7-bis(2-(dimethylamino)ethyl)-, dihydrobromide