1015-89-0 6(5H)-Phenantridinone 6-Phenanthridinol 6-Phenanthridone AI3-16988 CCRIS 2978 EINECS 213-804-3 NSC 11021 NSC 40943 NSC 61083 Phenanthridin-6(5H)-one Phenanthridone Phenanthridone (misnomer) Phenantridone