Bitter fennel oils

Wild bitter fennel oil differs considerably from the ahcve-described oils. Its specific gnivily varies from 0 L05 to 0 925, aud optical rotation + 40° to + 66 - -Anethol is present onlv in traces, but a [air amount of phellandrene is present. Tardy isolated from this oil a crystalline compound melting at 213", which is possibly di-para-1 Bull. Sat. Chin., xvil, 660. 

He found that the d-phellandrene from elemi and bitter fennel oils were identical, and that i-phellandrene from eucalyptus oil is the laevo-rotatory variety of the same terpene. To these he assigned the names d-a-phellandrene and i-a-phellandrene. The d-phellandrene from water fennel oil differs from these and is named d-/3-phellandrene. The following are the characters of the purest specimens of natural phellandrene yet obtained —... 

The two enantiomers of fenchone occur in a number of essential oils. Optically pure (15) (-f)-fenchone has been detected in bitter fennel oil Foeniculum vulgare var. vulgare) and in sweet fennel oil F. vulgare var. dulce) from various sources.It has also been reported to exist in... 

SYNS BITTER FENNEL OIL FENCHEL OEL (GERMAN) OIL OF FENNEL... 

Bitter Fennel Oils Sweet Fennel Oils... 

Synonyms cas 8006-84-e bitter fennel oil fenchel oel(german) oil of fennel Fenuron... 

The LD50 of orally administered fennel oil in rats is 3.8 ml/ kg, whereas that of bitter fennel oil is 5.42 ml/kg (Opdyke 1979). The dermal LD50 of fennel oil and bitter fennel oil in rabbits could not be determined at doses up to 5 ml/kg (Opdyke 1979). The LD50 of an ethanol extract of fennel orally administered in mice and rats could not be determined at doses up 3 g/kg (Shah et al. 1991 Tanira et al. 1996). 

Bitter fennel oil Colorless to yellowish oil with a typical camphor-like aromatic, sweet-spicy odor and a slightly bitter, camphor-like, sweet taste. 

Synonyms Bitter fennel oil Fennel oil Fennel oil, bitter Fennel oil, sweet Foeniculum vulgare... 

Fennel fruit. See Fennel (Foeniculum vulgare) Fennel oil Fennel oil, bitter Fennel oil, sweet. See Fennel (Foeniculum vulgare) oil Fennel seed. See Fennel (Foeniculum vulgare) Fennel, sweet, extract. See Fennel (Foeniculum vulgare) extract Fenoxaprop-ethyl CAS 66441-23-4... 

Inhibitory Data of Bitter Fennel Oil Obtained in the Dilution Test... 

Foeniculum jAperitum yields an oil SicUian fennel oil) of specific gravity about 950. Spanish fennel oils, when pure, do not differ materially from other genuine sweet and bitter fennel oils. But much of the commercial Spanish oil is a mixture distilled from the so-called wild, and other fennel species. 

There are two commonly used varieties of fennel common fennel (or bitter fennel) and sweet fennel, with the latter occurring only in the cultivated form. Common fennel appears to be the more commonly used fennel whenever the spice is called for. However, although fennel oils are official in the N.F. and F.C.C. (without specific distinctions between them), sweet fennel oil is reported to be the one generally used bitter fennel oil is used only to a limited extent, mainly in cosmetics (arctander fema furia and bellanca rosengarten). 

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