Table 3.
Phytochemicals identified in R. tinctorum root hydromethanolic extract by GC–MS.
| Peak | Rt (min) | Area (%) | Assignments |
|---|---|---|---|
| 1 | 4.6369 | 1.99 | 4-pentenoic acid, ethyl ester |
| 2 | 4.7440 | 0.26 | l-gala-l-ido-octose |
| 3 | 4.8414 | 0.52 | 4-cyclopentene-1,3-dione |
| 4 | 5.0021 | 1.09 | oxime-, methoxy-phenyl- |
| 5 | 5.1968 | 0.46 | 1-(2-furanyl)-ethanone |
| 6 | 5.2942 | 1.36 | 2,5-diethenyltetrahydro-2-methyl-furan |
| 7 | 5.3770 | 1.82 | 2-hydroxy-2-cyclopenten-1-one |
| 8 | 6.0781 | 0.70 | 2,4-dihydroxy-2,5-dimethyl-3(2H)-furan-3-one |
| 9 | 6.3312 | 2.91 | 2-hydroxy-γ-butyrolactone |
| 10 | 6.6331 | 2.47 | glycerin |
| 11 | 6.7694 | 1.93 | 1,2-cyclopentanedione, 3-methyl- |
| 12 | 6.9690 | 1.19 | 2-acetamido-2-deoxy-α-D-glucopyranose |
| 13 | 7.1345 | 0.76 | butyronitrile, 4-ethoxy-3-hydroxy- |
| 14 | 7.2952 | 1.55 | 2,5-dimethyl-4-hydroxy-3(2H)-furanone |
| 15 | 7.4267 | 0.77 | trimethyl(tetrahydrofuran-2-ylperoxy)silane |
| 16 | 7.6798 | 1.01 | 2-methoxy-phenol (or guaiacol) |
| 17 | 7.7869 | 2.20 | L-alanine, methyl ester |
| 18 | 8.2008 | 2.65 | dimethyl dl-malate |
| 19 | 8.3955 | 0.64 | ethanamine, N-ethyl-N-nitroso- |
| 20 | 8.5270 | 2.47 | 4H-pyran-4-one, 2,3-dihydro-3,5-dihydroxy-6-methyl- |
| 21 | 9.1453 | 0.87 | 4H-pyran-4-one, 3,5-dihydroxy-2-methyl- |
| 22 | 9.2865 | 0.97 | catechol |
| 23 | 9.4471 | 0.94 | 1,4:3,6-dianhydro-α-d-glucopyranose |
| 24 | 9.6857 | 0.35 | 5-hydroxymethylfurfural |
| 25 | 10.3965 | 0.31 | 2-acetoxy-5-hydroxyacetophenone |
| 26 | 10.5718 | 0.50 | p-cymen-7-ol |
| 27 | 10.8882 | 2.80 | 2-methoxy-4-vinylphenol (or 4-vinylguaiacol) |
| 28 | 11.2193 | 0.98 | DL-arabinose |
| 29 | 11.7451 | 1.09 | DL-proline, 5-oxo-, methyl ester |
| 30 | 12.0470 | 0.74 | vanillin |
| 31 | 12.6702 | 1.96 | 2-methoxy-4-(1-propenyl)-phenol (Z)- (or cis-isoeugenol) |
| 32 | 13.1473 | 1.05 | 1-[4-(methylthio)phenyl]-ethanone |
| 33 | 13.4492 | 0.86 | butylated hydroxytoluene |
| 34 | 13.6877 | 0.57 | benzeneacetic acid, 4-hydroxy-3-methoxy-, methyl ester |
| 35 | 13.9458 | 0.82 | 1,4-diacetyl-3-acetoxymethyl-2,5-methylene-l-rhamnitol |
| 36 | 14.3693 | 2.44 | α-methyl-l-sorboside |
| 37 | 15.0461 | 5.78 | guanosine |
| 38 | 15.5865 | 8.31 | 1,4-diacetyl-3-acetoxymethyl-2,5-methylene-l-rhamnitol |
| 39 | 16.0734 | 1.65 | 4-((1E)-3-hydroxy-1-propenyl)-2-methoxyphenol (or coniferyl alcohol) |
| 40 | 17.4561 | 0.43 | 5-amino-1-(4-amino-furazan-3-yl)-1H-[1,2,3]triazole-4-carbonitrile |
| 41 | 17.9088 | 1.18 | hexadecanoic acid, methyl ester |
| 42 | 18.2594 | 1.17 | n-hexadecanoic acid |
| 43 | 19.1552 | 0.76 | 5-(1,1-dimethylethyl)[1,1′-biphenyl]-2-ol (or 4-tert-butyl-2-phenylphenol) |
| 45 | 19.4278 | 0.69 | cyclopentadecane |
| 46 | 19.6421 | 0.15 | 1-hydroxy-9,10-anthracenedione (or α-hydroxyanthraquinone) |
| 47 | 19.8709 | 15.54 | 9,10-anthracenedione, 2-methyl- (or β-methylanthraquinone) |
| 48 | 20.7278 | 1.43 | 1-hydroxy-4-methylanthraquinone |
| 49 | 21.1659 | 1.75 | 1,2-dihydroxyanthraquinone (or alizarin) |
| 50 | 21.8038 | 1.40 | azacyclotridecan-2-one, 1-(3-aminopropyl)- |
| 51 | 23.0550 | 0.81 | glycerol 1-palmitate |
| 52 | 23.3812 | 0.73 | bis(2-ethylhexyl) phthalate |
| 53 | 23.8973 | 0.24 | 1,8-dihydroxy-3-methyl-9,10-anthracenedione (or 1,8-dihydroxy-3-methyl anthraquinone) |
| 54 | 24.2673 | 8.57 | 4-methoxy-4′,5′-methylenedioxybiphenyl-2-carboxylic acid |
| 55 | 24.4474 | 0.42 | 9-octadecenoic acid (Z)-, 2-hydroxy-1-(hydroxymethyl)ethyl ester |
| 56 | 25.4260 | 0.35 | squalene |
| 57 | 29.2333 | 0.62 | octasiloxane, 1,1,3,3,5,5,7,7,9,9,11,11,13,13,15,15-hexadecamethyl- |
| 58 | 29.9051 | 0.40 | γ-sitosterol |