139482-53-4 3-(2-Hydroxypropyl)-5-phenyl-3H-imidazo(4,5-c)(1,8)naphthyridin-4(5H)-one 4H-Imidazo(4,5-c)(1,8)naphthyridin-4-one, 3,5-dihydro-3-((4-nitrophenyl)methyl)-5-phenyl-, hydrate (2:1)