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Estragole

Estragole

IUPAC name	1-methoxy-4-(2-propenyl)benzene
Identifiers
CAS number	140-67-0
SMILES	C=CCC1=CC=C(OC)C=C1
Properties
Molecular formula	C₁₀H₁₂O
Molar mass	148.20 g/mol
Density	0.946 g/cm³
Boiling point	216 °C; 95-96 °C at 12 mmHg
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Estragole, or p-allylanisole or methyl chavicol, is a natural organic compound. Its chemical structure consists of a benzene ring substituted with a methoxy group and a propenyl group. Estragole is a double-bond isomer of anethole. It is a colorless to pale yellow liquid. It is the primary constituent of tarragon oil making up 60–75% of the oil. It is also found in basil (23–88%), pine oil, turpentine and Syzygium anisatum.

Additional recommended knowledge

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Estragole is used in perfumes and as a food additive for flavor.

Risks

Estragole is suspected to be carcinogenic and genotoxic, as is indicated by a report of the European Union. A reduction in consumption is thus indicated. Special care is also to be taken with infant nourishment, since many teas or tea-like beverages contain estragole.