2-((3,4-Dimethoxy-2-nitrophenyl)methylene)thiazolo(3,2-a)benzimidazol-3(2H)-one 88498-94-6 BRN 4585888 Thiazolo(3,2-a)benzimidazol-3(2H)-one, 2-((3,4-dimethoxy-2-nitrophenyl)methylene)-