| Compound | Description |
|---|
| d-alpha tocopherol | |
| 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) |
| Oxygen | An element with atomic symbol O, atomic number 8, and atomic weight [15.99903; 15.99977]. It is the most abundant element on earth and essential for respiration. |
| 2,5,7,8-tetramethyl-2-(2'-carboxyethyl)-6-hydroxychroman | structure given in first source; a metabolite of delta-tocopherol |
| 5-(6-hydroxy-2,5,7,8-tetramethyl-chroman-2-yl)-2-methyl-pentanoic acid | structure in first source |