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| Chemical Name | Dosage | Reference |
|---|---|---|
| SENKYUNOLIDE-N | 250 pg/ml | Duke, 1992 * |
| TRYPTOPHAN | 250 pg/ml | Duke, 1992 * |
| UMBELLIFERONE | not available | Duke, 1992 * |
| URUSHIOL | not available | Duke, 1992 * |
| XANTHOXYLIN | not available | Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Sambucus nigra | European Alder; European Elder; European Elderberry; Elder; Black Elder | 3 | 0 |
| Sambucus simpsonii | Simpson's elderberry | 1 | 0 |
| Sanguisorba minor | Small Burnet | 2 | 0 |
| Sanguisorba officinalis | Greater Burnet | 1 | 0 |
| Sansevieria trifasciata | African Bowstring Hemp; Snake Plant | 1 | 0 |
| Santalum album | White Sandalwood | 3 | 0 |
| Santolina chamaecyparissus | Lavender Cotton | 2 | 0 |
| Sarcostemma acidum | Soma | 2 | 0 |
| Sarracenia flava | not available | 3 | 50 |
| Sarracenia purpurea | not available | 2 | 0 |
| Sassafras albidum | Sassafras | 3 | 0 |
| Satureja cilicica | Turkish Savory | 1 | 3, 005 |
| Satureja cuneifolia | Cuneate Turkish Savory | 1 | 8, 760 |
| Satureja hortensis | Summer Savory | 3 | 35, 080 |
| Satureja montana | Winter Savory; Savory | 4 | 883, 660 |
| Satureja obovata | Iberian Savory; Savory | 1 | 2, 950 |
| Satureja subspicata | Yugoslav Savory | 1 | 220 |
| Satureja thymbra | Goat Oregano | 1 | 19, 830 |
| Saussurea lappa | Costus; Kuth | 2 | 0 |
| Schinus molle | California Peppertree; Mastic-Tree; Peruvian Peppertree | 2 | 0 |