Table 1.
The chemical composition of evening primrose oil by GC-MS analysis.
| Peak | Retention Time | Name | Area% | Molecular Weight | Molecular Formula |
|---|---|---|---|---|---|
| 1 | 4.08 | Decane | 1.39 | 142 | C10H22 |
| 2 | 6.63 | 1-Hexadecanol, 2-methyl- | 1.13 | 256 | C17H36O |
| 3 | 9.36 | Dodecane | 1.62 | 170 | C12H26 |
| 4 | 10.10 | Thiophene, tetrahydro-, 1,1-dioxide | 1.52 | 120 | C4H8O2S |
| 5 | 12.10 | 2,4-Dodecadienal, (E,E)- | 0.88 | 180 | C12H20O |
| 6 | 12.70 | Deca-2,4-Dienal | 1.25 | 152 | C10H16O |
| 7 | 14.43 | 1-Dodecene | 0.77 | 168 | C12H24 |
| 8 | 14.63 | (3β,5α)-Cholestanol | 2.52 | 389 | C27H48O |
| 9 | 17.54 | 2-(1,1-dimethylethyl)-5-(2-propenyl)-1,4-benzenediol | 5.38 | 206 | C13H18O2 |
| 10 | 18.11 | Ergost-5-en-3-ol(3β24R) | 17.10 | 401 | C28H48O |
| 11 | 19.22 | 7-Hexadecene, (Z)- | 1.24 | 224 | C16H32 |
| 12 | 19.38 | Hexadecane | 1.63 | 226 | C16H34 |
| 13 | 20.30 | Caryophyllene | 8.23 | 204 | C15H24 |
| 14 | 21.73 | 3-Nonanol, 2-methyl- | 0.77 | 158 | C10H22O |
| 15 | 23.67 | Nonadecane | 1.63 | 268 | C19H40 |
| 16 | 27.08 | Stigmast-5-en-3-ol, (3β)- | 39.81 | 415 | C29H50O |
| 17 | 27.44 | 1-Eicosanol | 2.05 | 298 | C20H42O |
| 18 | 27.73 | Gibberellic acid | 3.92 | 346 | C19H22O6 |
| 19 | 30.20 | Linoleic acid ethyl ester | 4.51 | 308 | C20H36O2 |
| 20 | 31.85 | 8,11,14-Eicosatrienoic acid, (Z,Z,Z)- | 2.12 | 306 | C20H34O2 |
| Σ99.47 |