Table 4.
Main compounds identified in Hibiscus syriacus leaf hydromethanolic extract by GC–MS.
| Peak | Rt (min) | Area (%) | Assignments |
|---|---|---|---|
| 1 | 6.078 | 2.51 | urea, (1,1-dimethylethyl)- |
| 4 | 17.154 | 2.87 | phytol, acetate |
| 7 | 18.021 | 1.86 | hexadecanoic acid, methyl ester |
| 8 | 18.396 | 2.38 | n-hexadecanoic acid |
| 9 | 19.662 | 2.49 | 9,12-octadecadienoic acid, methyl ester |
| 10 | 19.725 | 2.49 | 9,12,15-octadecatrienoic acid, methyl ester |
| 11 | 19.842 | 9.03 | phytol |
| 13 | 23.055 | 1.13 | pentacosane |
| 14 | 23.177 | 3.09 | hexadecanoic acid, 2-hydroxy-1-(hydroxymethyl)ethyl ester |
| 15 | 24.555 | 3.85 | heptacosane |
| 16 | 24.618 | 1.42 | 9,12,15-octadecatrien-1-ol |
| 17 | 25.538 | 2.96 | squalene |
| 18 | 25.957 | 3.87 | octadecane |
| 20 | 28.002 | 15.97 | vitamin E |
| 21 | 29.092 | 1.63 | campesterol |
| 22 | 29.448 | 1.66 | stigmasterol |
| 23 | 30.154 | 5.75 | sitosterol |
| 25 | 31.575 | 1.16 | vitamin E |
| 26 | 31.867 | 23.05 | 3,4-dihydro-4,4,6,8-tetramethyl-coumarin (or 4,4,6,8-tetramethyl-2-chromanone) |
| 27 | 32.111 | 2.11 | 6-isopropenyl-4,8a-dimethyl-3,5,6,7,8,8a-hexahydro-2(1H)-naphthalenone |
| 28 | 32.802 | 3.46 | selina-6-en-4-ol |