| Compound | Description |
|---|
| hydronium ion | |
| acetic acid | Product of the oxidation of ethanol and of the destructive distillation of wood. It is used locally, occasionally internally, as a counterirritant and also as a reagent. (Stedman, 26th ed) |
| uracil | One of four nucleotide bases in the nucleic acid RNA. |
| hydroxylamine | A colorless inorganic compound (HONH2) used in organic synthesis and as a reducing agent, due to its ability to donate nitric oxide. |
| potassium cyanide | A highly poisonous compound that is an inhibitor of many metabolic processes, but has been shown to be an especially potent inhibitor of heme enzymes and hemeproteins. It is used in many industrial processes. |