sS.No. Retention time (min) Name of the compounds Molecular formula Molecular weight Peakarea %a 1 2.476 9, 12-Octadecadienoic acid (Z,Z)- C18H32O2 280 98.34847 2 4.377 Isopropyl linoleate C21H38O2 322 0.06866 3 21.392 9,12-octadecadienoic acid(Z,Z),2-hydroxy-1- [hydroxymethyl)ethyl ester C21H38O2 354 0.00452 4 24.791 9, 12-Octadecadienoic acid, ethyl ester C20H36O2 308 0.00736 5 27.923 E,E,Z-1,3,12-Nonodecatriene-5,14-diol C19H34O2 294 0.15081 6 30.382 Ethanol,2-(9,12-Octadecadienyloxy)-, (Z,Z)- C20H38O2 310 0.57465 7 32.078 10,13-Octadecadienoic acid, methyl ester C19H34O2 294 0.1329 8 32.681 cis-13,16-Docasadienoic acid, methyl ester C23H42O2 316 0.03463 9 33.067 9,12-Octadecadienoic acid (Z,Z)-, methyl ester, (E,E)- C19H34O2 294 0.07472 10 34.839 10-Octadecenoic acid, methyl ester C19H36O2 296 0.11585 11 36.663 9,12-Octadecadienoic acid, methyl ester, (E,E)- C19H34O2 294 0.37539 12 37.265 9,12-Hexadecadienoic acid, methyl ester C17H30O2 266 0.11205

a Relative percentage of total sample.

Table 2: Compounds identified in the isolated fraction of B2'O of Oreosyce africana by GC-MS.