| Compound | Description |
|---|
| hydronium ion | |
| Guaifenesin | An expectorant that also has some muscle relaxing action. It is used in many cough preparations. |
| alpha-glycerophosphoric acid | |
| fumaric acid | see also record for ferrous fumarate; use FUMARATES for general fumaric acid esters |
| hydrogen | The first chemical element in the periodic table with atomic symbol H, and atomic number 1. Protium (atomic weight 1) is by far the most common hydrogen isotope. Hydrogen also exists as the stable isotope DEUTERIUM (atomic weight 2) and the radioactive isotope TRITIUM (atomic weight 3). Hydrogen forms into a diatomic molecule at room temperature and appears as a highly flammable colorless and odorless gas. |
| Pyruvic Acid | An intermediate compound in the metabolism of carbohydrates, proteins, and fats. In thiamine deficiency, its oxidation is retarded and it accumulates in the tissues, especially in nervous structures. (From Stedman, 26th ed) |
| dihydroxyacetone phosphate | An important intermediate in lipid biosynthesis and in glycolysis. |