Table 2: Chemical composition of essential oils (HE-12) from C. formicarum.

Pic

RT (min)

Composition

%

Identification

1

6.58

α-pinene

2.4

GC/MS

2

7.75

β-pinene          

0.9

GC/MS

3

8.03

β-myrcene       

6.2

GC/MS

4

9.04

1-methyl-4-(1-methylethyl)benzene

1.6

GC/MS

5

9.33

(E) 3,7-dimethyl-1,3,6-octatriene

7.6

GC/MS

6

9.64

(Z) 3,7-dimethyl octa-1,3,6-triene   

0.4

GC/MS

7

19.25

4-bis(1-methylethenyl)-l-ethenyl-1-methyl-2-cylohexane

1.7

GC/MS

8

20.06

caryophyllene

18.6

GC/MS

9

20.76

4-methylene-1,1,7-trimethyl decahydro-lH-cycloprop[e]azulene

1.4

GC/MS

10

20.97

α-caryophyllene

3.5

GC/MS

11

21.39

4a,8-dimethyl-1,2,3,4,4a,5,6,7-octahydronaphthalene-2-bopropenyl

2.9

GC/MS

12

21.46

epizonarene

2.3

GC/MS

13

21.82

[1S-(1α,7α,8aα)]-8a-dimethyl-7-(1-methylethenyl)-, - 1,2,3,5,6,7,8,8a-octahydro naphthalene

5.6

GC/MS

14

22.00

α-limonene

4.2

GC/MS

15

22.15

(1S-cis), 1,4-dimethyl-7-(1-ethylethylidene),1,2,3,4,5,6,7,8-octahydro azulene

3.7

GC/MS

16

22.54

(-)-α-panasinsene         

1.2

GC/MS

17

24.05

1-methyl-6-methylenebicyclo [3.2.0] heptane

4.0

GC/MS