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| Chemical Name | Dosage | Reference |
|---|---|---|
| RESVERATROL | not available | Duke, 1992 * |
| RHAMNOCITRIN | MIC=625 ug/ml | Duke, 1992 * |
| RHEIN | not available | Duke, 1992 * |
| RUSCOGENIN | not available | Duke, 1992 * |
| SABINENE | not available | Duke, 1992 * |
| SAFROLE | not available | Merck 11th Edition |
| SAKURANETIN | not available | Duke, 1992 * |
| SALICYLIC-ACID | not available | A.L.L. Hunting. Encyclopedia of Shampoo Ingredients. Micelle Press, Cranford NJ. 467 pp. |
| SALVIN | not available | Lawrence Review of Natural Products, Aug-92. |
| SALVIN-MONOMETHYL-ETHER | not available | Lawrence Review of Natural Products, Aug-92. |
| SANGUINARINE | not available | Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989. |
| SCHKUHRIN-I | not available | Duke, 1992 * |
| SCHKUHRIN-II | not available | Duke, 1992 * |
| SCOPOLETIN | not available | Duke, 1992 * |
| SCOPOLETOL | not available | Duke, 1992 * |
| SCORDININ | not available | LAWSON in Koch, H. P. and Lawson, L. D., eds. 1996. Garlic- The Science and therapeutic application of Allium sativum L. and related species. Williams & Wilkins, Baltimore. 329 pp. |
| SCRODININE | not available | Duke, 1992 * |
| SHOGAOL | not available | Iwu, M.M. 1993. Handbook of African Medicinal Plants. CRC Press, Boca Raton, FL 435 pp. |
| SOPHORAFLAVANONE-G | MIC=3-6ug/mL | Duke, 1992 * |
| SPIROCHIN | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Rheum palmatum | Chinese Rhubarb | 21 | 21, 918.5 |
| Rheum rhabarbarum | Rhubarb | 15 | 34, 583 |
| Rhizophora mangle | Red Mangrove | 4 | 124, 743 |
| Rhododendron dauricum | Chinese Alpenrose | 8 | 0 |
| Rhododendron ferrugineum | Rusty-Leaved Alpenrose | 2 | 0 |
| Rhododendron molle | Yellow Azalea | 1 | 0 |
| Rhododendron ponticum | Pontic Alpenrose | 4 | 0 |
| Rhodymenia palmata | Dulse | 2 | 279 |
| Rhus copallina | Dwarf Sumac; Winged Sumac | 1 | 448 |
| Rhus coriaria | Sicilian Sumac; Sumac; Tanner's Sumac | 4 | 0 |
| Rhus glabra | Smooth Sumac | 2 | 214 |
| Rhus toxicodendron | Poison Ivy | 2 | 0 |
| Rhynchosia minima | Burn Mouth Vine | 2 | 0 |
| Ribes nigrum | Black Currant | 30 | 186, 716 |
| Ribes rubrum | Red Currant; White Currant | 9 | 61, 232 |
| Ribes uva-crispa | Gooseberry | 10 | 22, 905 |
| Ricinus communis | Castorbean | 5 | 0 |
| Robinia pseudoacacia | Black Locust | 6 | 0 |
| Rollinia mucosa | Biriba; Lancewood | 1 | 5, 800 |
| Rosa canina | Rose; Dogbrier; Dog Rose | 11 | 357, 939 |