Table 8 GC/MS identified compounds from the n-hexane extract of Azadirachta indica.

1

4,6-dimethyl-Dodecane

Alkane

18.286

1275

–

1.58

C₁₄H₃₀

RI, MS

2

Heneicosane

Alkane

23.233

1454

–

6.18

C₂₁H₄₄

RI, MS

3

Nonadecane

Alkane

23.919

1481

–

1.57

C₁₉H₄₀

RI, MS

4

(1-butylhexyl)-Benzene

Alkyl benzene

24.723

1512

–

1.27

C₁₆H₂₆

RI, MS

5

Eicosane

Alkane

25.035

1525

–

11.47

C₂₀H₄₂

RI, MS

6

(1-pentylhexyl)-Benzene

Alkyl benzene

27.051

1619

1625

2.22

C₁₇H₂₈

RI, MS

7

(1-propyloctyl)-Benzene

Alkyl benzene

27.358

1619

1628

1.49

C₁₇H₂₈

RI, MS

8

(1-ethylnonyl)-Benzene

Alkyl benzene

27.839

1640

1656

1.69

C₁₇H₂₈

RI, MS

9

(1-methyldecyl)-Benzene

Alkyl benzene

28.677

1675

–

2.37

C₁₇H₂₈

RI, MS

10

(1-propylnonyl)-Benzene

Alkyl benzene

29.693

1720

1734

1.58

C₁₈H₃₀

RI, MS

11

(1-ethyldecyl)-Benzene

Alkyl benzene

30.165

1741

1755

2.03

C₁₈H₃₀

RI, MS

12

(1-methylundecyl)-Benzene

Alkyl benzene

30.988

1778

–

1.55

C₁₈H₃₀

RI, MS

13

(1-pentyloctyl)-Benzene

Alkyl benzene

31.494

1801

1813

1.63

C₁₉H₃₂

RI, MS

14

(1-ethylundecyl)-Benzene

Alkyl benzene

32.387

1843

1856

1.67

C₁₉H₃₂

RI, MS

15

(1,3,3-trimethylnonyl)-Benzene

Alkyl benzene

33.181

1880

–

1.79

C₁₈H₃₀

RI, MS

16

Hexadecanoic acid, methyl ester (Methyl palmitate)

Fatty acid methyl ester

33.472

1894

1898

1.73

C₁₇H₃₄O₂

RI, MS

17

3-methyl-Octadecane

Alkane

34.595

1949

–

1.25

C₁₉H₄₀

RI, MS

18

(Z, E)-3,13-Octadecadien-1-ol

Fatty alcohol

36.686

2055

2065

1.90

C₁₈H₃₄O

RI, MS

19

2-Methyltetracosane

Alkane

36.872

2064

–

1.25

C₂₅H₅₂

RI, MS

20

Phytol

Diterpenoid

37.215

2082

2083

1.61

C₂₀H₄₀O

RI, MS

21

Methyl stearate

Fatty acid methyl ester

37.432

2093

2098

1.69

C₁₉H₃₈O₂

RI, MS

22

Carbonic acid, decyl 2-ethylhexyl ester

Lipid ester

41.655

2470

–

1.06

C₁₉H₃₈O₃

RI, MS

23

2-Methylheptacosane

Alkane

42.171

2742

–

1.70

C₂₈H₅₈

RI, MS

24

4,8,13-Duvatriene-1,3-diol

Sesquiterpenoid

44.055

2849

–

1.99

C₂₀H₃₄O₂

RI, MS

25

Tetratriacontane

Alkane

45.160

2539

–

2.09

C₃₄H₇₀

RI, MS

26

1,3-Benzenedicarboxylic acid, bis-(2-ethylhexyl) ester

Dicarboxylic acid ester

47.603

2698

–

1.76

C₂₄H₃₈O₄

RI, MS

27

Hexatriacontane

Alkane

48.255

2327

–

3.01

C₃₆H₇₄

RI, MS

28

Tetracontane

Alkane

49.788

2267

–

12.46

C₄₀H₈₂

RI, MS

% Identification

73.59

Alkane

42.56

Alkyl benzene

19.29

Fatty acid ester

3.42

Fatty alcohol

1.90

Sesquiterpenoid

1.99

Diterpenoid

1.61

Dicarboxylic acid ester

1.76

Lipid ester

1.06