Sweet, warm and strongly anisic — dominated by trans-anethole giving a licorice-candy character with a slight camphoraceous edge. Underneath sits a green, herbaceous fennel-seed facet with faint peppery bitterness that distinguishes bitter fennel from the sweeter variety.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 | 2.1% |
| p-Methoxybenzaldehyde | 123-11-5 | 0.3% |