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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 |
|---|---|---|---|
| Cocos nucifera | Coconut; Coconut Palm; Copra; Nariyal; Kokospalme (Ger.); Cocotero (Sp.) | 3 | 6, 030 |
| Coffea arabica | Coffee | 5 | 530 |
| Coix lacryma-jobi | Adlay; Adlay Millet; Job'S-Tears; Yi-Yi-Ren | 2 | 0 |
| Cola acuminata | Abata Cola | 1 | 0 |
| Coleus barbatus | Forskohl's Coleus | 2 | 4, 042.900001525879 |
| Collinsonia canadensis | Stone Root | 1 | 0 |
| Colocasia esculenta | Taro | 1 | 4, 130 |
| Commelina benghalensis | Benghal dayflower | 1 | 0 |
| Commiphora myrrha | Myrrh; African Myrrh; Herabol Myrrh; Somali Myrrh; Myrrhe (Fr., Ger.); Mirra (Sp. It.) | 2 | 27, 600 |
| Commiphora wightii | Guggul; Indian Bdellium-Tree | 1 | 0 |
| Conium maculatum | Poison Hemlock; Hemlock; Spotted Hemlock; Fool's Parsley; Carrot Fern; Spotted Parsley | 2 | 240, 000 |
| Convallaria majalis | Lily-Of-The-Valley | 1 | 0 |
| Conyza canadensis | Butterweed; Hogweed; Horseweed | 2 | 0 |
| Corchorus olitorius | Jew's Mallow; Mulukiya; Nalta Jute | 1 | 12, 000 |
| Coriandrum sativum | Coriander; Chinese Parsley; Cilantro | 5 | 2, 970.3000000044703 |
| Coridothymus capitatus | Spanish Oregano | 1 | 18, 105 |
| Corylus americana | American Filbert; American Hazel | 1 | 0 |
| Corylus avellana | English Filbert; European Filbert; European Hazel; Hazel; Cobnut | 1 | 0 |
| Costus speciosus | Crepe Ginger; Wild Ginger; Cane Reed | 3 | 90, 000 |
| Crataegus laevigata | Hawthorn; English Hawthorn; Whitethorn; Woodland Hawthorn | 5 | 56, 000 |