| Compound | Description |
|---|---|
| hydronium ion | |
| Ammonium | |
| Carbon Dioxide | A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals. |
| Water | A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) |
| succinyl-coenzyme A | |
| preuroporphyrinogen | |
| Porphobilinogen | |
| Coenzyme A | |
| Ethacridine | A topically applied anti-infective agent. |