| Primary (First) - fennel |
| | alpha- | allyl-4-methyl-3-cyclohexene methanol |
| | odor: sweet, fennel, anise- like, licorice-like and green aroma |
| | flavor: sweet, fennel, anise-like, licorice- like and green flavor |
| FL | | amyl 2-furoate |
| | odor: caramellic winey fennel |
| | flavor: fennel oily |
| FL/FR | sweet | fennel absolute |
| | odor: anise licorice |
| | flavor: fennel |
| FL | | fennel flavor |
| FL | toasted | fennel flavor |
| FL/FR | sweet | fennel oleoresin |
| | odor: fennel |
| | flavor: fennel |
| FL | sweet | fennel seed |
| | odor: fennel |
| | flavor: fennel |
| FL/FR | sweet | fennel seed oil |
| | odor: sweet earthy anise green peppery herbal spicy |
| | flavor: Sweet, anise / anethole-like with a green herbal background |
| FL/FR | sweet | fennel seed oil CO2 extract |
| | odor: fennel |
| | flavor: fennel |
| FL | | foeniculum vulgare fruit |
| | odor: sweet green anethol herbal |
| | flavor: fennel |
| FL/FR | | foeniculum vulgare fruit extract |
| | odor: fennel |
| | flavor: fennel |
| FL/FR | | foeniculum vulgare mill. var. dulce d.c. fruit extract |
| | odor: fennel |
| | flavor: fennel |
| FL/FR | | foeniculum vulgare vulgare fruit extract |
| | odor: fennel |
| | flavor: fennel |
| Secondary (Second) - fennel |
| FL/FR | | anise seed oil |
| | odor: sweet licorice anise |
| | flavor: anise |
| FL/FR | star | anise seed oil china |
| | odor: sweet anise licorice |
| | flavor: Sweet, anise and fennel with a full-bodied sweetness and an herbal nuance |
| FL/FR | | anise seed oil colombia |
| | odor: anise licorice |
| | flavor: anise |
| FL/FR | star | anise seed oil spain |
| | odor: anise licorice |
| | flavor: anise licorice |
| FL/FR | | dihydroanethol |
| | odor: sweet anise licorice sassafrass fennel |
| | flavor: Intense herbal fennel sweetness reminiscent of black licorice, sassafras and anise. It has slight spicy basil-like nuances |
| Tertiary (Third) - fennel |
| FL | | anise flavor |
| FL/FR | para- | anisyl methyl ketone |
| | odor: sweet fruity creamy spicy green anisic balsamic licorice fennel |
| | flavor: sweet spicy anisic fennel licorice green grassy minty root beer |
| FL | 4- | methyl biphenyl |
| | odor: Floral, spicy, wintergreen, estragole and waxy with cooling, minty nuances |
| | flavor: Spicy, estragole, fennel, floral and wintergreen |
| FD | | ocimum basilicum |
| | odor: basil |
| | flavor: basil |
| FL/FR | | ocimum basilicum herb oil |
| | odor: anise herbal tarragon green spicy |
| | flavor: basil |
| FL/FR | | ocimum basilicum herb oil egypt |
| | odor: sweet herbal tarragon green spicy |
| | flavor: Sweet, methyl chavicol, licorice, fennel and root beer nuances |
| FL/FR | | ocimum basilicum leaf oil america |
| | odor: sweet herbal tarragon green spicy |
| | flavor: herbal green fennel root beer |
| FL/FR | | ocimum basilicum leaf oil india |
| | odor: sweet herbal tarragon green spicy |
| | flavor: anise licorice fennel root beer |
| Quaternary (Fourth) - fennel |
| FL/FR | | ocimum basilicum leaf oil CO2 extract |
| | odor: Sweet, herbal, sassafrass, green, leafy, spicy, basil and slightly anisic |
| | flavor: Sweet, herbal, green, licorice, fennel, sassafrass and spicy |
| Quinary (Fifth) - fennel |
| FL/FR | | ethyl citronellate |
| | odor: fruity dry dusty citrus sweet licorice rose spicy fennel |
| | flavor: sweet dusty dry anise licorice fennel weedy |
| Senary (Sixth) - fennel |
| FL/FR | para- | dimethyl hydroquinone |
| | odor: sweet green new mown hay fennel |
| | flavor: sweet green hawthorn new mown hay anisic anise fennel powdery fatty |
| Septenary (Seventh) - fennel |
| Octonary (Eighth) - fennel |
| FL/FR | | geranium thiazole |
| | odor: geranium green red rose nutty vegetable nut skin earthy beany |
| | flavor: green vegetable nut flesh earthy nut skin licorice red rose fennel |