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Table 3 Phytocomponents identified in the methanolic extract of flowers of Pyrostegia venusta by GC-MS

From: Preliminary study of the antioxidant properties of flowers and roots of Pyrostegia venusta (Ker Gawl) Miers

RT Name of Compound Molecular MW Peak Area (%)
5.478 Acetophenone C8H8O 120.058 0.325
11.032 .alpha.-l-Mannopyranoside, methyl 6-deoxy-2,3,4-tris-O-(trimethylsilyl)- C30H70O9Si6 394.203 4.952
11.295 3H-3a,7-Methanoazulene, 2,4,5,6,7,8-hexahydro-1,4,9,9-tetramethyl-, [3aR-(3a.alpha.,4.beta.,7.alpha.)]- (Synonym Cyperene) C15H24 204.188 0.101
15.473 trans-3-Hexenedioic acid, bis(trimethylsilyl) ester C12H24O4Si2 288.121 0.914
15.878 .beta.-DL-Arabinopyranose, 1,2,3,4-tetrakis- O-(trimethylsilyl)- (Synonym- B Arabipyranos C17H42O5Si4 438.211 2.498
16.072 Ethylmalonate, ethyltrimethylsilyl ester C8H16O4Si 232.113 2.311
16.402 Propionic acid, pentamethyldidilanyl ester C8H20O2Si2 204.1 0.519
18.315 Glycoside, .alpha.-methyl-trtrakis-O-(trimethylsilyl)-   482.237 11.713
18.596 Hexadecanoic acid, methyl ester (Synonym-Palmitic Acid) C17H34O2 274.196 5.394
18.688 D-Xylose, tetrakis(trimethylsilyl)- C18H45NO5Si4 438.211 0.618
18.838 Glycoside,.alpha.-methyl-trtrakis-O-(trimethylsilyl)- C19H46O6Si4 482.237 7.364
19.806 Gluconic acid, 2-methoxime, tetra(trimethylsilyl)-, trimethylsilyl ester   583.267 1.503
23.174 9,12-Octadecadienoic acid, methyl ester (Synonym Linoleic acid) C19H34O2 294.256 4.225
23.346 9-Octadecenoic acid (Z)-, methyl ester (Synonym OleicAcid) C19H36O2 296.272 5.606
24.118 Myo-Inositol, 1,2,3,4,5,6-hexakis-O-(trimethylsilyl)- C24H60O6Si6 612.301 33.033
31.17 Docosanoic acid, methyl ester (Synonym Hysterene) C23H46O2 354.35 0.709
31.291 1,2-Benzenedicarboxylic acid, mono(2-ethylhexyl) ester (Synonym Pthalic Acid) C16H22O4 278.152 0.454
31.712 Methyl 10-methyl-undecanoate C13H26O2 214.193 0.12
31.873 [1, 2, 4]Triazolo[1,5-a]pyrimidine-6-carboxylic acid, 4,7-dihydro-7-imino-, ethyl ester   207.076 0.124
32.064 Dotriacontane C32H66 450.516 0.402
32.179 Silicic acid, diethyl bis(trimethylsilyl) ester C10H28O4Si3 296.13 0.074
32.237 Tetracosanoic acid, methyl ester C25H50O2 382.381 1.12
32.59 Di-n-decylsulfone C20H42O2S 346.291 0.101
32.984 Dodecahydropyrido[1,2-b]isoquinolin-6-one C13H21N 207.162 0.163
33.159 Heptacosane C27H56 380.438 3.202
33.264 Tetrasiloxane, decamethyl- C10H30O3Si4 310.127 0.252
33.367 Tetradecanoic acid, 12-methyl-, methyl ester C16H32O2 256.24 0.18
34.388 Stigmasteryl tosylate C29H48O 566.379 1.493
34.857 2-p-Nitrophenyl-oxadiazol-1,3,4-one-5 C8H5N3O4 207.028 0.408
35.813 2-Methyl-6-(5-methyl-2-thiazolin-2-ylamino)pyridine C10H13N3S 208.146 0.623
36.418 Diazoprogesterone C21H30N4 338.247 1.511
36.724 1,6-Dibromo-2-cyclohexylpentane C11H20Br2 309.993 4.622
37.079 Cyclotrisiloxane, hexamethyl- C6H18Si3 222.056 0.261
37.409 cis-2-Hexen-1-ol, trimethylsilyl ether C6H12O 172.128 1.308