Synthesis and Spectral Characterisation of (E)-3-(3-(4 (Dimethylamino)Phenyl)Acrylo-yl)-4-Hydroxy-2H-Chromen-2-One and Their Antibacterial Activity and Acetylcholinesterase Inhibition

Figure 6

Emission (right; λ_ex = 500 nm) and excitation (left; λ_em = 650 nm) spectra of coumarin 3 (1 × 10⁻⁵ M) in a 10% ethanolic-universal buffer solution with a pH of 4.