10-Methyl-7H-benzimidazo(2,1-a)benz(de)isoquinolin-7-one 4-24-00-00779 (Beilstein Handbook Reference) 5-Methylnaftoylbenzimidazol [Czech] 5504-68-7 7H-Benzimidazo(2,1-a)benz(de)isoquinolin-7-one, 10-methyl- BRN 0255815