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| Chemical Name | Dosage | Reference |
|---|---|---|
| 1,8-CINEOLE | not available | Duke, 1992 * |
| Plant Name | Common Name | Chemical Count | Total Parts Per Million |
|---|---|---|---|
| Chrysanthemum balsamita | Balsamite; Costmary | 1 | 0 |
| Chrysanthemum parthenium | Feverfew | 1 | 0 |
| Chrysanthemum x morifolium | Chrysanthemum; Florist's Chrysanthemum; Mum; Ju Hua (Pinyin) | 1 | 360 |
| Cinnamomum aromaticum | Cassia; Cassia Bark; Cassia Lignea; Chinese Cassia; Chinese Cinnamon; China Junk Cassia; Saigon Cinnamon; Zimtcassie (Ger.); Canela de la China (Sp.); Canelero chino (Sp.); Chinazimt (Ger.); Chinesischer Zimtbaum (Ger.); Kashia-Keihi (Jap.); Canelle de Cochinchine (Fr.); Cannelier Casse (Fr.); Cannelier de Chine (Fr.) | 1 | 0 |
| Cinnamomum camphora | Camphor; Ho Leaf | 1 | 12, 480 |
| Cinnamomum verum | Cinnamon; Ceylon Cinnamon | 1 | 46, 820 |
| Cistus ladaniferus | Ambreine; Gum Cistus; Labdanum; Rockrose | 1 | 560 |
| Citrus aurantiifolia | Lime | 1 | 70 |
| Citrus limon | Lemon | 1 | 50, 000 |
| Citrus reticulata | Mandarin; Tangerine | 1 | 152 |
| Cleonia lusitanica | Spanish Heal-All | 1 | 10 |
| Coriandrum sativum | Coriander; Chinese Parsley; Cilantro | 1 | 41, 340 |
| Crocus sativus | Saffron | 1 | 0 |
| Cuminum cyminum | Cumin | 1 | 276 |
| Cunila origanoides | Mountain Dittany; Frost Flower; Frost Mint; Maryland Dittany; American Dittany; Stone Mint; Dittany | 1 | 196 |
| Curcuma longa | Turmeric; Indian Saffron | 1 | 19, 810 |
| Curcuma zedoaria | Shoti; Zedoary | 1 | 3, 840 |
| Cymbopogon citratus | West Indian Lemongrass; Lemongrass | 1 | 0 |
| Cyperus rotundus | Nutsedge | 1 | 0 |
| Dracocephalum thymiflora | Thyme-Flowered Moldavica | 1 | 134 |