Table 5.
Major constituents of P. virgatus methanol extract revealed via GC-MS analysis.
| Peak | R.T | Compound | Molecular formula |
Molecular weight | Area% |
|---|---|---|---|---|---|
| 1 | 16.508 | Benzenedicarboxylic acid (synonym: phthalic acid) |
C12H14O4 | 222 | 7.1 |
| 2 | 17.005 | 2,4,5-Trimethoxy propenyl benzene (synonym: asarone) |
C12H16O3 | 208 | 27 |
| 3 | 18.508 | Tridecyl ester (synonym: acrylic acid) |
C16H30O2 | 254 | 8.77 |
| 4 | 22.643 | Hexadecanoic acid (synonym: palmitic acid) |
C17H34O2 | 270 | 13.36 |
| 5 | 26.557 | 9,12-Octadecadienoic acid (synonym: linoleic acid) |
C19H34O2 | 294 | 16.91 |
| 6 | 26.798 | 11-Octadecenoic acid | C19H34O3 | 294 | 22.29 |
| 7 | 27.517 | 6-Octadecynoic acid | C19H34O4 | 294 | 4.56 |