Bitter fennel oil of the phellandrene chemotype has a sweet anise-licorice opening lifted by a fresh, peppery-herbal green edge from its higher phellandrene and terpene content. Compared to the sweet fennel type it is drier, more camphoraceous and slightly medicinal, with a warm spicy-herbal facet lingering in the drydown.AI · claude-opus-4-7
Restricted IFRA-standard materials typically present in this NCS at the listed concentrations.
| Constituent | CAS | Typical % |
|---|---|---|
| Estragole | 140-67-0 | 4.7% |
| p-Methoxybenzaldehyde | 123-11-5 | 0.2% |