Table 1.
Chemical constituents of the n-hexane extracts of Cassia javanica and Tecoma stans flowers.
| No | Compound Name | RT | RI exp | RI rep | %R Tecoma stans | %R Cassia javanica |
|---|---|---|---|---|---|---|
| 1 | Decane | 9.161 | 989 | 891 | 6.06 | 0.89 |
| 2 | 3-Carene | 9.870 | 1012 | 1012 | 1.21 | 0.36 |
| 3 | m-Cymene | 10.160 | 1021 | 1021 | 0.62 | - |
| 4 | (Z)-β-Ocimene | 10.890 | 1044 | 1043 | 0.93 | - |
| 5 | Heptyl acetate | 10.980 | 1047 | 1047 | 0.92 | - |
| 6 | (Z)-β-Ocimene | 11.075 | 1050 | 1050 | 0.99 | 0.35 |
| 7 | 2-Methyldecane | 11.190 | 1053 | 1051 | 2.57 | 1.10 |
| 8 | γ-Terpinene | 11.395 | 1060 | 1059 | 0.96 | 0.45 |
| 9 | 2,9-Dimethyldecane | 12.350 | 1090 | 1086 | 15.87 | 11.46 |
| 10 | Nonanal | 12.875 | 1106 | 1107 | 1.62 | - |
| 11 | Myrcenol | 13.180 | 1116 | 1116 | 1.98 | - |
| 12 | Fenchol | 13.205 | 1117 | 1117 | - | 0.98 |
| 13 | trans-Pinene hydrate | 13.420 | 1124 | 1123 | 1.33 | 0.80 |
| 14 | neo-Isopulegol | 14.025 | 1143 | 1143 | 1.37 | - |
| 15 | trans-Verbenol | 14.070 | 1144 | 1144 | 1.41 | 1.73 |
| 16 | Z-Tagetone | 14.190 | 1148 | 1147 | 1.64 | 1.33 |
| 17 | Citronellal | 14.325 | 1152 | 1153 | 5.09 | 3.79 |
| 18 | β-Pinene oxide | 14.525 | 1159 | 1158 | 2.26 | 1.28 |
| 19 | Artemisyl acetate | 15.035 | 1175 | 1174 | - | 0.90 |
| 20 | Terpinen-4-ol | 15.176 | 1179 | 1177 | - | 0.50 |
| 21 | p-Cymen-8-ol | 15.455 | 1188 | 1188 | 23.73 | - |
| 22 | α-Terpineol | 15.490 | 1189 | 1189 | - | 29.32 |
| 23 | cis-Dihydrocarvone | 15.845 | 1200 | 1198 | 3.60 | 3.11 |
| 24 | Pulegone | 16.600 | 1226 | 1227 | 0.75 | - |
| 25 | Citronellol | 16.634 | 1228 | 1228 | - | 0.59 |
| 26 | Cumin aldehyde | 16.985 | 1240 | 1239 | 0.69 | - |
| 27 | Neral | 17.045 | 1242 | 1242 | 0.67 | - |
| 28 | Carvone | 17.180 | 1247 | 1248 | 0.88 | 0.55 |
| 29 | Piperitone | 17.320 | 1252 | 1253 | 2.77 | 2.42 |
| 30 | Methyl citronellate | 17.510 | 1258 | 1258 | 1.59 | 1.39 |
| 31 | Linalyl acetate | 17.580 | 1261 | 1261 | 2.95 | 2.58 |
| 32 | Geranial | 17.795 | 1268 | 1268 | - | 0.27 |
| 33 | Limonen-10-ol | 18.375 | 1288 | 1289 | 0.55 | 0.60 |
| 34 | Palmitic acid | 34.465 | 1951 | 1953 | 1.32 | - |
| 35 | 4-Hexadecyl hexanoate | 42.185 | 2367 | 2362 | 0.57 | |
| 36 | Pentacosane | 44.860 | 2533 | 2521 | 1.78 | |
| 37 | 1,2-Benzenedicarboxylic acid, mono(2-ethylhexyl) ester | 44.895 | 2535 | 2521 | - | 6.71 |
| 38 | Heptacosane | 46.980 | 2669 | 2666 | 6.44 | 6.80 |
| 39 | Octacosane | 48.450 | 2764 | 2738 | - | 1.34 |
| 40 | Squalene | 49.850 | 2854 | 2831 | 4.76 | 10.51 |
| 41 | Stigmastan-3,5-diene | 52.560 | 3028 | 3040 | 0.67 | 7.33 |
| Total percentage | 100 | 100 | ||||
| Monoterpene hydrocarbons | 29.12 | 14.61 | ||||
| Monoterpene alcohols | 30.37 | 34.02 | ||||
| Esters | 5.46 | 12.15 | ||||
| Aldehydes | 8.07 | 4.06 | ||||
| Ketones | 9.64 | 7.41 | ||||
| Long chain hydrocarbons | 13.65 | 25.98 | ||||
Exp Experimental retention index (RI) using a series of n-alkanes (C10–C40) calculated under identical experimental conditions. Rep Reported retention index according to the National Institute of Standards and Technology (NIST) library and published literature data and calculated under identical experimental conditions as the references [40,41,42,43,44,45,46,47,48,49]. %R The relative percentage of individual volatile components according to the peak area and calculated from the GC (Gas chromatography) chromatogram; RT = retention time.