Over 60 different compounds have been identified, with the primary ones being carvacrol and thymol ranging to over 80 %, while lesser abundant compounds include p-cymene, ?-terpinene, caryophyllene, spathulenol, germacrene-D, ?-fenchyl alcohol and ?-terpineol.
12.
The "'cymenes "'( " methylcumenes ", " isopropyltoluenes " ) constitute a group of substances of aromatic hydrocarbons, which structure consists of a benzene ring with an isopropyl group ( CH ( CH 3 ) 2 ), and a methyl group ( CH 3 ) as a substituent.
13.
Recent comprehensive studies of chemical variability in hydrodistilled essential oils of different wild growing and cultivated populations of " T . pannonicus " from Hungary, as well as supercritical fluid extracts of various " Lamiaceae " species, confirmed that high concentrations of both thymol and p-cymene are the main chemosystematic attributes of " T . pannonicus " essential oil,.
14.
Further research efforts of Pluh�r Zs . et al . on the volatile oil composition of " T . pannonicus " from nineteen different localities of Hungary, confirmed a significant essential oil polymorphism in this plant species, as twelve different chemovarieties were determined, namely : thymol, thymol / p-cymene, thymol / p-cymene / ?-terpinene, thymol / p-cymene / neral, thymol / p-cymene / ?-terpinene / ?-bisabolene, thymol / p-cymene / isoborneol / ?-terpinene, thymol / linalyl acetate / ?-terpinene / ?-cubebene, p-cymene / geraniol / linalyl acetate, linalyl acetate / geranyl acetate, germacrene-D / ?-caryophyllene, caryophyllene oxide / ?-cubebene / linalool, and germacrene-D / ?-caryophyllene / farnesol.
15.
Further research efforts of Pluh�r Zs . et al . on the volatile oil composition of " T . pannonicus " from nineteen different localities of Hungary, confirmed a significant essential oil polymorphism in this plant species, as twelve different chemovarieties were determined, namely : thymol, thymol / p-cymene, thymol / p-cymene / ?-terpinene, thymol / p-cymene / neral, thymol / p-cymene / ?-terpinene / ?-bisabolene, thymol / p-cymene / isoborneol / ?-terpinene, thymol / linalyl acetate / ?-terpinene / ?-cubebene, p-cymene / geraniol / linalyl acetate, linalyl acetate / geranyl acetate, germacrene-D / ?-caryophyllene, caryophyllene oxide / ?-cubebene / linalool, and germacrene-D / ?-caryophyllene / farnesol.
16.
Further research efforts of Pluh�r Zs . et al . on the volatile oil composition of " T . pannonicus " from nineteen different localities of Hungary, confirmed a significant essential oil polymorphism in this plant species, as twelve different chemovarieties were determined, namely : thymol, thymol / p-cymene, thymol / p-cymene / ?-terpinene, thymol / p-cymene / neral, thymol / p-cymene / ?-terpinene / ?-bisabolene, thymol / p-cymene / isoborneol / ?-terpinene, thymol / linalyl acetate / ?-terpinene / ?-cubebene, p-cymene / geraniol / linalyl acetate, linalyl acetate / geranyl acetate, germacrene-D / ?-caryophyllene, caryophyllene oxide / ?-cubebene / linalool, and germacrene-D / ?-caryophyllene / farnesol.
17.
Further research efforts of Pluh�r Zs . et al . on the volatile oil composition of " T . pannonicus " from nineteen different localities of Hungary, confirmed a significant essential oil polymorphism in this plant species, as twelve different chemovarieties were determined, namely : thymol, thymol / p-cymene, thymol / p-cymene / ?-terpinene, thymol / p-cymene / neral, thymol / p-cymene / ?-terpinene / ?-bisabolene, thymol / p-cymene / isoborneol / ?-terpinene, thymol / linalyl acetate / ?-terpinene / ?-cubebene, p-cymene / geraniol / linalyl acetate, linalyl acetate / geranyl acetate, germacrene-D / ?-caryophyllene, caryophyllene oxide / ?-cubebene / linalool, and germacrene-D / ?-caryophyllene / farnesol.
18.
Further research efforts of Pluh�r Zs . et al . on the volatile oil composition of " T . pannonicus " from nineteen different localities of Hungary, confirmed a significant essential oil polymorphism in this plant species, as twelve different chemovarieties were determined, namely : thymol, thymol / p-cymene, thymol / p-cymene / ?-terpinene, thymol / p-cymene / neral, thymol / p-cymene / ?-terpinene / ?-bisabolene, thymol / p-cymene / isoborneol / ?-terpinene, thymol / linalyl acetate / ?-terpinene / ?-cubebene, p-cymene / geraniol / linalyl acetate, linalyl acetate / geranyl acetate, germacrene-D / ?-caryophyllene, caryophyllene oxide / ?-cubebene / linalool, and germacrene-D / ?-caryophyllene / farnesol.
19.
Further research efforts of Pluh�r Zs . et al . on the volatile oil composition of " T . pannonicus " from nineteen different localities of Hungary, confirmed a significant essential oil polymorphism in this plant species, as twelve different chemovarieties were determined, namely : thymol, thymol / p-cymene, thymol / p-cymene / ?-terpinene, thymol / p-cymene / neral, thymol / p-cymene / ?-terpinene / ?-bisabolene, thymol / p-cymene / isoborneol / ?-terpinene, thymol / linalyl acetate / ?-terpinene / ?-cubebene, p-cymene / geraniol / linalyl acetate, linalyl acetate / geranyl acetate, germacrene-D / ?-caryophyllene, caryophyllene oxide / ?-cubebene / linalool, and germacrene-D / ?-caryophyllene / farnesol.
