Estragole

  • Methylchavicol
  • 1-methoxy -4- allylbenzene
  • 4- allylanisole
  • 1-methoxy- 4-(2 -propenyl) -benzene

Anise smelling oil

Liquid

0.96 g · cm -3

216 ° C

Very poor in water ( 178 mg · l-1 at 20 ° C)

1.5195 (20 ° C)

Attention

1230 mg · kg -1 ( LD50, rat, oral)

Template: Infobox chemical / molecular formula search available

Estragole is a phenylpropanoid and an isomer of anethole.

Occurrence

Estragole is aromatic volatile oil, consisting of tarragon ( 60-75 % estragole ), chervil (60 % estragole ), basil ( 23-88 % estragole ), anise, star anise, bay, fennel, allspice, nutmeg, pine and turpentine obtained be.

Properties

Estragole is a viscous, colorless liquid of anisartigem odor, which boils under atmospheric pressure at 216 ° C. The vapor pressure function is given by Antoine corresponding log10 (P) = A- ( B / ( T C )) ( P in bar, T in K) with A = 5.03793, B = 2246.739 and C = -41 799 in the temperature range from 326 K to 488 K. The compound dissolves only slightly ( 0.178 g / l ) in water.

Use

The fabric is used in perfumes, liquors and foods as fragrance or flavor. The European flavors Regulation 1334/2008 (Annex III, part A) regulates the use of estragole in flavorings and food ingredients. As a pure substance may estragole flavors and not be added - but provided that the substance is input in flavorings and food ingredients through natural sources such as tarragon oil or basil oil, are the main foods that often contain these extracts for flavoring to observe limits. A general maximum level for all the food there is not, but the manufacturer of foodstuffs, the EC Basis Regulation 178/2002 Article 14 observed, after which food must be "safe".

Health risks

Since the substance was often found in tea infusions and acts carcinogenic in animal studies, the Federal Institute for Risk Assessment has underlined the urgency that may not be detectable in such Teeerzeugnissen estragole. Especially because these beverages are often given to infants and young children, the Institute lowering the estragole content is urgently needed.

CAS registry number PubChem Dangerous Substances Directive (67/548/EEC) Pimenta racemosa Antoine equation CRC Handbook of Chemistry and Physics Digital Object Identifier
317541
de