Figure 7. Stacked NMR spectra for pure short chain (C1–C4) alkyl salicylate esters. MS, ES, PS, and BS are represented by red, blue, green, and black lines, respectively. The inset shows a magnified view of the region containing the hydroxyl peaks (observed at 10.7710 ppm, 10.9233 ppm, 10.9382 ppm, and 10.9497 ppm in the standard spectra for MS, ES, PS, and BS, respectively) used for quantification

From

Compositional Analysis of Short-chain Alkyl (C1-C4) Salicylate Ester Mixtures by Various Quantitative Analytical Techniques

Ronald P. D’Amelia, Shreya Prasad, Mary T. Rooney

World Journal of Analytical Chemistry. 2025, 10(1), 6-15 doi:10.12691/wjac-10-1-2