Table 1 The relative percentage of silylated compounds in A. pyrethrum root methylene chloride fraction using GC-MS

13.41

1377

Copaene

C₁₅H₂₄

204

1.58

0.09

SC

13.75

1573

Spathulenol

C₁₅H₂₄O

220

0.40

0.12

SA

15.01

1613

Caryophyllene oxide

C₁₅H₂₄O

220

0.35

0.28

SO

15.21

1788

 N-isobutyl-dodeca-2,4,8,10-tetraenamide

C₁₆H₂₅NO

247

0.76

0.99

AA

15.40

1802

Hexadecane

C₁₆H₃₄

226

0.49

0.89

A

15.91

1856

Heptadecane

C₁₇H₃₆

240

1.03

0.73

A

16.38

1878

 N-isobutyl-2,4-heptadiene-6-monoynamide

C₁₁H₁₅NO

177

0.48

0.01

AA

16.76

1891

Lauric acid

C₁₂H₂₄O₂

200

4.55

0.12

FA

16.96

1900

Myristic acid

C₁₄H₂₈O₂

228

0.33

0.55

FA

17.09

1910

Pentadecanoic acid

C₁₅H₃₀O₂

242

0.51

0.39

FA

17.61

1921

Palmitic acid

C₁₆H₃₂O₂

256

1.56

1.01

FA

18.17

1936

Linoleic acid

C₁₈H₃₂O₂

280

0.38

0.04

FA

18.45

1941

Stearic acid

C₁₈H₃₆O₂

284

0.18

0.08

FA

19.02

Tetradeca-2E,4E-dien-8,10-diynoic acid isobutylamide (anacycline)

C₁₈H₂₅NO

271

0.30

0.12

AA

19.87

1946

Deca-2E,4E-dienoic acid isobutylamide (pellitorine)

C₁₄H₂₅NO

223

7.96

0.22

AA

20.20

1949

Deca-2E,4E,8Ztrienoic acid isobutylamide (8,9-(dehydropellitorine)

C₁₄H₂₃NO

221

2.33

0.67

AA

20.34

1951

Undeca-2E,4E-diene-8,10-diynoic acid isobutylamide

C₁₅H₁₉NO

229

0.49

0.78

AA

20.50

1959

Deca-2E,4E,8Ztrienoic acid piperidide

C₁₅H₂₃NO

233

0.86

0.89

AA

21.04

1976

Tetradeca-2E-diny-8,10-diynoic acid isobutylamide

C₁₈H₂₇NO

273

0.64

0.99

AA

21.84

1989

Tetradeca-2E,4E, nE-trienoic-8,10-diynoic acid Isobutylamide

C₁₈H₂₃NO

269

0.24

1.03

AA

23.02

2007

 N-isobutyl-2,4-undecadiene-8,10-diynamide

C₁₆H₂₁NO

243

0.78

0.03

AA

23.11

2018

Dodeca-2E,4E, nE-trienoic acid 4-hydroxyphenylethylamide

C₂₀H₂₇NO₂

313

0.46

0.06

AA

23.43

2029

2,8-N-isobutyl-2,8-dodecadienamide

C₁₆H₂₉NO

251

0.92

0.82

AA

23.59

2041

Tetradeca-2E,4E,8Etrienoic acid 4-hydroxyphenylethylamide

C₂₂H₃₁NO₂

341

1.68

0.74

AA

25.99

2052

2E,4E-deca-2,4-dienoic acid 2-phenylethyl amide

C₁₈H₂₅NO

271

11.22

0.45

AA

26.12

2068

Deca-2E,4E-dienoic acid piperideide

C₁₅H₂₃NO

233

3.13

0.23

AA

26.30

2078

Deca-2E,4E,6Z-trienoic acid piperideide/Deca-2E,4E,6E-trienoic acid piperideide

C₁₅H₂₁NO

231

1.49

0.03

AA

26.40

2096

Deca-2E,4E,6Z,8Ztetraenoic acid piperideide/Deca-2E,4E,6E,8Ztetraenoic acid piperideide

C₁₅H₁₉NO

229

1.34

0.78

AA

26.52

2116

Tetradeca-2E,4E,12Ztriene-8,10-diynoic acid isobutylamide

C₁₈H₂₃NO

269

0.88

0.19

AA

26.67

2124

Phytol

C₂₀H₄₀O

296

0.44

0.34

D

26.87

2158

Linoleic acid ethyl ester

C₂₀H₃₆O

308

1.69

0.36

E

32.81

2200

Myristamide

C₁₄H₂₉NO

227.

1.51

0.21

AA

34.68

2275

Palmitoleamide

C₁₆H₃₁NO

253

1.13

0.58

AA

35.07

2377

Oleamide

C₁₈H₃₅NO

281

17.53

0.27

AA

35.23

2399

Stearamide

C₁₈H₃₇NO

283

3.46

0.13

AA

37.75

2410

Eicosane

C₂₀H₄₂

282

1.47

0.45

A

37.97

2734

Tetracosanoic acid, methyl ester

C₂₅H₅₀O

366

1.73

0.78

E

39.50

2837

Squalene

C₃₀H₅₀

410

2.12

0.60

T

39.77

3172

Stigmasterol

C₂₉H₄₀O

412

8.78

0.29

S

39.99

3353

γ- Sitosterol

C₂₉H₅₀O

414

3.55

0.78

S

40.46

3370

Lupeol

C₃₀H₅₀O

426

2.63

0.97

T

Terpenes (%)

7.52

Alkylamides (%)

59.59

Alkanes (%)

2.99

Fatty acids (%)

7.51

Esters (%)

3.42

Sterols (%)

12.33

Total identified components (%)

93.36