Figure 5. 1H-NMR spectrum of aspartame in D2O with the addition of a few drops of concentrated HCl. The resonance at 4.80 ppm originates from water present in the D2O solvent

From

A Complete Structure Investigation of an Organic Molecule for Chemistry Students; An Analysis of Aspartame

Marit Kristin Leiren, Kari Grete Nordli Børve, Rhiannon Tveiten Lewis, Signe Steinkopf

American Journal of Educational Research. 2026, 14(8), 248-256 doi:10.12691/education-14-8-1