| CIDNP | chemically induced dynamic nuclear polarization |
| DHP | 2,6-dimethyl-3,5-dicarbmethoxy-1,4-dihydropyridine |
| EPR | electron paramagnetic resonance |
| GSH | glutathione |
| ISC | intersystem crossing |
| MeOD or CD3OD | deuterated methanol |
| NADH | nicotinamide adenine dinucleotide |
| NMR | nuclear magnetic resonance |
| RP | radical pair |
| Pyr | pyridine product |
| ROS | reactive oxygen species |
| Q1 | 2-phenyl-4-(butylamino)naphtho [2,3-h]quinoline- 7,12-dione |
| 3Q1 | quinone triplet state |