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| Title | Activity Count |
|---|---|
| PHENOL | 2 |
| PHENYL-GLUCOSIDE | 1 |
| PHEOPHYTIN-A | 1 |
| PHEOPHYTIN-B | 1 |
| PHLORIDZIN | 1 |
| PHLORIZIN | 1 |
| PHLOROTANNIN | 1 |
| PHORATOXIN | 1 |
| PHOSPHORUS | 1 |
| PHTHALIDE | 2 |
| PHYLLIGENIN | 1 |
| PHYLLOQUINONE | 1 |
| PHYTIC-ACID | 3 |
| PHYTOLACCOSIDE | 1 |
| PHYTOSTEROLS | 1 |
| PICEATANNOL | 1 |
| PICEID | 1 |
| PILOCARPINE | 1 |
| PIMPINELLIN | 1 |
| PINORESINOL | 1 |
| Title | Chemical Count | Activity Count |
|---|---|---|
| Rauvolfia tetraphylla | 8 | 7 |
| Rauvolfia vomitoria | 9 | 11 |
| Ravensara aromatica | 14 | 10 |
| Rehmannia glutinosa | 17 | 17 |
| Rhamnus cathartica | 3 | 10 |
| Rheedia gardneriana | 1 | 1 |
| Rheum officinale | 15 | 16 |
| Rheum palmatum | 29 | 21 |
| Rheum rhabarbarum | 37 | 23 |
| Rhizophora mangle | 14 | 18 |
| Rhizophora mucronata | 1 | 1 |
| Rhododendron anthopogon | 1 | 1 |
| Rhododendron arboreum | 1 | 1 |
| Rhododendron dauricum | 18 | 14 |
| Rhododendron falconeri | 1 | 1 |
| Rhododendron ferrugineum | 8 | 10 |
| Rhododendron grande | 1 | 1 |
| Rhododendron ledebourii | 1 | 1 |
| Rhododendron molle | 3 | 4 |
| Rhododendron ponticum | 17 | 16 |