Research Article

Chemical Composition of the Essential oil of Chromolaena odorata (L.) R. M. King & H. Rob. Roots from India

Table 2

Chemical composition of the essential oil of the roots of C. odorata.

CompoundRI %Identification

α-Pinene9080.2RI, MS
Camphene 9200.4RI, MS
β-Pinene9410.3RI, MS
n-Decane9571.1RI, MS
trans-Decalin 10110.8RI, MS
n-Undecane10554.9RI, MS
cis-Thujone11020.8RI, MS
trans-Thujone11140.7RI, MS
(E)-Tagetone11100.4RI, MS
Tetrahydrolavandulol11170.9RI, MS
n-Dodecane11705.1RI, MS
n-Tridecane12913.3RI, MS
α-Longipinene13532.5RI, MS
n-Tetradecane14124.3RI, MS
β-Caryophyllene14360.2RI, MS
E-β-Farnesene14790.2RI, MS
γ-Muurolene15073.3RI, MS
β-Selinene1511tRI, MS
α-Bulnesene15400.5RI, MS
δ-Cadinene15570.3RI, MS
Guaiol16470.7RI, MS
10-epi-γ-Eudesmol16700.8RI, MS
α-Acorenol16790.9RI, MS
Himachalol169324.2RI, MS
Androencecalinol171714.1RI, MS
Cedr-8-en-14-ol1735tRI, MS
2-Methoxy-6-(1-methoxy-2-propenyl) naphthalene17865.6RI, MS
9,10-Dimethyl-1,2,3,4,5,6,7,8-octahydroanthracene18013.5RI, MS
7-Isopropyl-1,4-dimethyl-2-azulenol182517.6RI, MS

Total identified97.6
Monoterpene hydrocarbons0.9
Oxygenated monoterpenes2.8
Sesquiterpene hydrocarbons6.8
Oxygenated sesquiterpenes26.6
Phenyl derivatives41.6
Long chain hydrocarbons18.9

RI: Retention index relative to C8–C25   -alkanes on TG-5 column, MS: NIST and Wiley library, and the literature, t: trace (<0.1%).