Sweet, green-anisic with a herbal, almost tarragon-like pungency. Estragole smells like chewing a fresh tarragon leaf — licorice-sweet, green, with a faintly medicinal edge.
Sweet-green anisic opening, distinctly herbal and tarragon-like. Greener and more pungent than anethole, less purely sweet than anisaldehyde, more herbal than trans-anethole. There is a fresh, almost camphoraceous bite that softens into a warm, licorice-green middle. On blotter, the herbal character persists while the anisic sweetness gently fades.
Evolution over time
Immediately
Immediately
Sweet green-anisic burst, herbal and slightly pungent. Tarragon-like.
After a few hours
After a few hours
Warm licorice-green heart. Herbal character dominates. Camphoraceous edge softens.
CAS 140-67-0. Also known as methyl chavicol or p-allylanisole. A phenylpropanoid found naturally in tarragon (Artemisia dracunculus), basil (exotic/methyl chavicol chemotype), fennel, and anise. The molecule is the defining aroma compound of French tarragon.
The scent is sweet, green, and distinctly anisic — similar to anethole but greener, more herbaceous, and less purely sweet. There is a fresh, slightly pungent quality that distinguishes it from the smoother sweetness of anethole. At high concentrations, a faintly medicinal or camphoraceous edge can appear.
Estragole is used in perfumery as a herbal-anisic modifier, though its use has been increasingly scrutinized due to safety considerations — the molecule has shown genotoxic potential in some studies, and IFRA recommends limiting its concentration in finished products. It remains an important character-impact compound in basil, tarragon, and anise reconstructions.
Estragole derives its name from 'estragon,' the French word for tarragon — which itself comes from the Latin 'dracunculus' (little dragon). Medieval herbalists believed tarragon could cure snakebites, hence the draconic nomenclature.
Extraction & Chemistry
Extraction method: Naturally present in basil oil (methyl chavicol chemotype, 70-90%), tarragon oil (60-75%), and fennel oil. Can be isolated by fractional distillation from these essential oils. Also produced synthetically from allylbenzene by methylation. The basil oil route from Comoros Islands is the most common commercial source.
Top-to-heart modifier in herbal-anisic, aromatic, and green compositions. Estragole is the character molecule for tarragon and exotic basil accords. In fine fragrance, it adds an unusual herbal-anisic freshness to aromatic compositions — less expected than lavender or rosemary, and more complex. Works in fougère structures where a licorice-herbal quality is desired. Usage levels are typically low due to IFRA restrictions on estragole content in consumer products.
