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Main radical and non-radical reactive oxygen and nitrogen species (ROS and RNS, respectively).
| ROS | RNS | ||
|---|---|---|---|
| Free Radicals | Non-Radicals | Free Radicals | Non-Radicals |
| Hydroxyl (HO•) | Hydrogen peroxide (H2O2) | Nitric Oxide (NO•) | Dinitrogen trioxide (N2O3) |
| Superoxide anion (O2•−) | Singlet oxygen (1O2) | Nitrogen dioxide (NO2•) | Dinitrogen tetraoxide (N2O4) |
| Lipid peroxyl (ROO•) | Ozone (O3) | Peroxynitrite (ONOO−) | |
| Thiyl (•RS) | Lipid peroxide (ROOH) | Nitrosothiols (SNOs) | |
