| Compound | Description |
|---|
| lycopene | A carotenoid and red pigment produced by tomatoes, other red fruits and vegetables, and photosynthetic algae. It is a key intermediate in the biosynthesis of other carotenoids, and has antioxidant, anti-carcinogenic, radioprotective, and anti-inflammatory properties. |
| 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. |
| deoxyflexixanthin | major pigment of Spirochete RSl; structure |
| 3,4-didehydrorhodopin | a major carotenoid in Rhodopseudomonas species; structure in first source |
| rhodopin | RN given for (all-trans)-isomer; structure in first source |