Synonyms: Benzimidazo(2,1-b)benzo(lmn)(3,8)phenanthroline-1,3,6(2H)-trione, 9(or 10)-chloro-2-(3-methoxypropyl)-;9(Or 10)-chloro-2-(3-methoxypropyl)benzimidazo(2,1-b)benzo(lmn)(3,8)phenanthroline-1,3,6(2H)-trione;10-chloro-2-(3-methoxypropyl)benzimidazo[2,1-b]benzo[lmn][3,8]phenanthroline-1,3,6(2H)-trione