| phenO | 1:10-phenanthroline-1-N-oxide |
| DMPO | 2,9-dimethyl-1,10-phenanthroline-1-N-oxide |
| TMPO | 3,4,7,8-tetramethyl-1,10-phenanthroline-1-N-oxide |
| 5MPO | 5-methyl-1,10-phenanthroline-1-N-oxide |
| 6MPO | 6-methyl-1,10-phenanthroline-1-N-oxide |
| 5NPO | 5-nitro-1,10-phenanthroline-1-N-oxide |
| 6NPO | 6-nitro-1,10-phenanthroline-1-N-oxide |
| 5CPO | 5-chloro-1,10-phenanthroline-1-N-oxide |
| 6CPO | 6-chloro-1,10-phenanthroline-1-N-oxide |
| 4MPO | 4-methyl-1,10-phenanthroline-1-N-oxide |
| 7MPO | 7-methyl-1,10-phenanthroline-1-N-oxide |