1,5-Dihydro-5-phenyl-4H-imidazo(4,5-c)(1,8)naphthyridin-4-one 139339-02-9 4H-Imidazo(4,5-c)(1,8)naphthyridin-4-one, 1,5-dihydro-5-phenyl- 5-Phenyl-1H-imidazo(4,5-c)(1,8)naphthyridin-4(5H)-one BRN 4874703 KF 17625 KF17625