## 3 Results
### Gas Chromatography Coupled to Mass Spectrometry (GC-MS)
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline  & & **BRANCHES EXTRACTS** & **Area 1** & **Area 2** & **Area 3** & **Area 4** & **Area 5** \\ \hline
**N\({}^{*}\)** & **IRT** & **FRT** & **COMPOUNDS** & **RC \%** & **RC \%** & **RC \%** & **RC \%** & **RC \%** \\ \hline
01 & 25.05 & 25.40 & Hydrocoumarin & 7.2 & 1.1 & 16.8 & 7.3 & 9.3 \\
02 & 33.16 & 33.19 & (-)-Spathulenol & 8.3 & - & 16.9 & 4.5 & 3.4 \\
03 & 39.06 & 46.19 & 4-O-Methylamino & 18.1 & 85.5 & 25.4 & 4.2 & - \\
04 & 46.79 & 47.04 & N-hexadecanoic acid (palmitic acid) & 8.9 & 1.3 & - & 9.0 & 9.5 \\
05 & 47.63 & 47.87 & Hexadecanoic acid ethyl ester (Palmitic acid ethyl ester) & - & - & - & 4.0 \\
06 & 51.96 & 52.11 & (Z,Z)-9,12-octadecenoic acid (oleic acid) & - & 1.0 & - & 4.5 & 4.5 \\
07 & 52.02 & 52.47 & (Z)-9-octadecenoic acid (oleic acid) & 6.8 & - & - & - & - \\
08 & 52.15 & 52.28 & (Z)-9-octadecan & - & - & - & 5.4 & 5.1 \\
09 & 52.63 & 52.87 & (Z,Z)-9,12-octadecanediol acid ethyl ester (Lioneal acid ethyl ester) & - & - & - & 3.0 \\
10 & 52.87 & 52.99 & & & - & - & 5.3 & 5.2 \\
11 & 63.08 & 63.12 & Bis(2-ethylhexyl)phthalate & 7.4 & - & 16.9 & 6.4 & 6.9 \\
12 & 67.80 & 68.00 & 1,4-Benzenedarboxylic acid bis(2-ethylhexyl) ester & - & - & - & 3.4 \\
13 & 78.69 & 78.75 & & & - & - & 5.4 & 4.8 \\
14 & 80.05 & 80.13 & \(\gamma\)-Stiosterol & 8.4 & 1.6 & - & 6.9 & 7.1 \\
15 & 81.29 & 81.35 & Lup-2092-p)-3-one & 8.9 & 2.3 & - & 7.3 & 4.7 \\
16 & 81.89 & 82.08 & & Lupeol & 18.9 & 6.0 & 23.9 & 33.9 & 29.1 \\ Total \% & & & & & 100 & 100 & 100 & 100 & 100 \\ \hline \hline \end{tabular} Note: IRT = initial retention time; FRT = final retention time of the compounds obtained in the collection areas; RC % = relative content in percentage; Appendix A (Figures A6–A10) = chromatograms of the branches extracts in the five collection areas.  
\end{table} 
Table 5: Chemical compounds identified in the ethanolic extracts of the branches of _Dipteray punctata_, in the five collection areas of the municipality of Moqui dos Campos, Eastern Amazon, Brazil. Fatty acids also showed percentages above 5% in the extracts of \(D\). _punctata_ residues in the collection areas. Ethyl oleate was detected with a percentage of 9.9% in area 1, 8.5% in area 2, and 6.4% in area 4 (Table 6). The constituents found in the residues collected in all study areas were hydrocoumarin, coumarin, and cis-vaccenic acid, making these compounds markers for extracts from \(D\). _punctata_ residues. Hydrocoumarin had the highest percentage in areas 2 (7.7%) and 4 (8.5%) and coumarin and cis-vaccenic acid in areas 1, 2, and 4, with percentages of 8.2%, 7.2%, and 9% for coumarin, and 14.6%, 13.9% and 10% for cis-vaccenic acid, respectively (Table 6). For the residues collected in areas 3 and 5, most of the constituents identified in the extracts had percentages below 5%, except the ester (E,E,E)-1,2,3-propanetriyl of 9-octadecenoic acid (8.5%) in area 3, and 4-O-methylmannose, which was the major constituent of these areas, with 81.7% (area 3) and 90.6% (area 5) (Table 6). This last compound was also identified in the branches of \(D\). _punctata_. In the extracts of \(D\). _punctata_ seeds, 23 compounds were identified, 20 of which were found in area 1. Oleic acid was the major constituent (32.5%) and there were four substances with percentages above 5%, namely, coumarin (5.4%), n-hexadecanoic acid (6.1%), cis-vaccenic acid (8.5%), and (Z)-9-octadecenoic acid 2,3-dihydroxypropyl ester (11%) (Table 7).