eucalyptol

(redirected from 1,8-cineole)
Also found in: Dictionary, Medical.

eucalyptol

[‚yü·kə′lip‚tȯl]
(organic chemistry)
C10H18O A colorless oil with a camphorlike odor; boiling point is 174-177°C; used in pharmaceuticals, perfumery, and flavoring. Also known as cajeputol; cineol.
References in periodicals archive ?
Most species of eucalyptus tree contain essential oils in their leaves and, depending on the species, the main component of the oil is a volatile compound called 1,8-cineole, commonly known as eucalyptol.
Component RT Leaf Component (min.) oil (%) [alpha]-pinene 5.9 1.18 bicyclo- germancrene [beta]-pinene 7.4 1.06 [delta]-cadinene mircene 8.0 1.07 valencene [beta]-ocimene 8.7 15.20 spathulenol [beta]-cimene 9.3 0.93 caryophylenne oxide 1,8-cineole 9.6 18.12 Ledol Terpinolene 12.1 1.48 humulene oxide [beta]-caryophyllene 29.2 5.05 viridiflorol aromadendrene 30.2 2.95 Globulol [alpha]-humulene 30.9 2.16 aromadendrene oxide germacrene D 32.4 4.15 Component RT Essential (min.) oil (%) [alpha]-pinene 33.2 11.63 [beta]-pinene 34.6 1.94 mircene 35.3 2.15 [beta]-ocimene 37.1 1.54 [beta]-cimene 37.3 8.32 1,8-cineole 38.3 3.36 Terpinolene 38.5 0.91 [beta]-caryophyllene 40.1 0.89 aromadendrene 40.7 1.59 [alpha]-humulene 41.2 1.31 germacrene D Table 2.
officinalis (S7, S8) possess [alpha]-thujone (42.97 and 40.37%), camphor (13.00 and 15.78%), 1,8-cineole (7.54 and 8.07%) and [beta]-thujone (5.86 and 8.12%) of a total of 90.38% and 96.62% of identified compounds, respectively.
The ratio between the concentration of 1,8-cineole (0.4-6.0%) and limonene (1.0-5.9%) varied in the interval 1-5.0 (as an exception, in the oil from Russia this ratio was 0.3).
(A) Component Croton argyrophylloides Peak (a) RI 6am 12pm 4pm 1 [alpha]-Pinene 931 26.06 20.98 16.75 2 Sabinene 973 7.93 11.21 12.05 3 [beta]-Pinene 975 1.66 1.63 1.63 4 [delta]-3-Carene 992 2.53 2.58 2.25 Oxygenated monoterpenes (OM) 5 1,8-Cineole 1025 2.9 3.71 4.65 6 Terpinen-4-ol 1180 1.06 1.16 0.93 Sesquiterpene hydrocarbons (SH) 7 [delta]-Elemene 1346 3.52 3.21 3.32 8 [beta]-bourbonene 1393 n.d.
The medicinal plant Achillea ligustica containing terpinen-4-ol, [beta]-pinene, 1,8-cineole, and linalool showed effective inhibitory activity against S.
The lavender EO is chemically composed of camphor, terpinen-4-ol, linalool, linalyl acetate, beta-ocimene, and 1,8-cineole (Table 2) [34].
The results obtained in our study showed that major compounds of Chenopodium botrys aerial parts of Isfahan sample were: Camphene (24.785%), [beta]-Myrcene (11.250%), 1,8-Cineole (10.823%), L-Fenchone (7.205%), Naphthalene (5.846%), cis-Ocimene (4.427%), (Table 1& Figure 1).
The most dominant of all identified compounds were linalool (18-26.5%), myrtenyl acetate (16.5-18.5%) and 1,8-cineole (13-16.8%), followed by [alpha]-pinene (3.4-7.9%), [alpha]-terpineol (6-7.5%) and geranyl acetate (6.5%).
The percentages of myrcene, 1,8-cineole, and [gamma]-terpinene also varied little in the different seasons, where the dry season showed the highest percentage, with the exception of myrcene whose percentages were higher in the rainy season.
This is not always the case, however, as 1,8-cineole, a terpenoid, was demonstrated to cause depolarization of the resting membrane and to block excitability, mainly indirectly, via the effect of depolarization voltage-dependent [Na.sup.+] current activation (31).
ludens, when a blend of 4 synthetic compounds of volatiles of yellow chapote: 1,8-cineole, ethyl hexanoate, ethyl octanoate, and hexanol in combination with putrescine, ammonium bicarbonate, and methylamine HCl did not increase the captures compared with the traps containing metabolites of amino acids alone (Robacker 1998).