Rt (min) Compounds (%) RIa RIb Mol. Formula
  Monoter penes
3.261 α-Pinene 1.27 939 939 C10H16
3.880 β-Pinene 0.42 981 980 C10H16
10.625 p-Cymene 2.56 1026 1026 C10H14
11.381 1,8-Cineol 3.08 1029 1033 C10H18O
16.153 Thymol 3.27 1288 1290 C10H14 O
16.947 Carvacrol 7.01 1298 1298 C10H14 O
18.042 Eugenol 1.13 1357 1356 C10H12O2
  Sesquiterpenes
19.511 Thymol acetate 0.92 1357 1355 C12H16O2
23.760 α-Copaene 4.17 1378 1376 C15H24
25.934 β-Cubebene 11.26 1400 1390 C15H24
28.486 β-Elemene 2.04 1390 1391 C15H24
28.627 Methyl eugenol 0.49 1400 1401 C11H14O2
29.002 α-Humulene 1.21 1454 1454 C15H24
30.165 Germacrene D 9.81 1477 1480 C15H24
31.931 Butylated hydroxytoluene 2.00 1509 1512 C15H24O
32.471 Eugenol acetate 1.55 1537 1536 C12H16O3
33.502 Spathulenol 27.09 1577 1576 C15H24O
35.099 Globulol 5.36 1583 1583 C15H26O
35.710 Humulene epoxide 1.08 1598 1606 C15H24O
36.420 γ-Eudesmol 3.59 1630 1630 C15H26O
40.015 Cubenol 0.78 1643 1642 C15H26O
43.127 α-Eudesmol 2.34 1651 1652 C15H26O
  Other
5.618 n-Hexanol 4.43 867 867 C6H14O
34.701 Hexadecanol 0.32 1871 1879 C16H34O
47.095 Phytol 1.00 1957 1949 C20H40O
54.32 α-tocoferol 0.24 2960 - C29H50O2
Total identified (%) 98.38      
Relative proportions of the essential oil constituents were expressed as percentages. Rt=Retention time according their order on MS. aRetention indices experimental (based on homologous series of n-alkane C7-C30). bRetention indices from literature (Adams, 1995)
Table 1: Chemical compounds present in Scutia buxifolia essential oil.