Figure 1

1H-NMR spectra of E. longifolia root extract (A) at δ 0.5–6.5 ppm, and (B) at δ 6.5–11.0 ppm showing characteristic signals for primary and secondary metabolites. Peaks assigned in the spectrum are labeled as listed in Table 1.
1H-NMR spectra of E. longifolia root extract (A) at δ 0.5–6.5 ppm, and (B) at δ 6.5–11.0 ppm showing characteristic signals for primary and secondary metabolites. Peaks assigned in the spectrum are labeled as listed in Table 1.