Spectroelectrochemistry (SEC) is a powerful method of characterization that combines the advantages of both spectroscopy and electrochemistry. Combining UV-Vis measurements with chronoamperometry followed the UV-Vis spectrum changes of 8AQ when a constant negative potential value was applied to the working electrode, forcing the reduction of the molecule. Experiments were performed in solutions at pH 3. Without potential, at the lower pH, where monoprotonated 8-aminoquinoline (8AQH + in 2a or 2b form, see Figure ) dominates, we have observed five bands (Figure ): three associated with 2a form according to calculations, i.e., 260, 312, ~380 nm and two closely spaced bands of 225/229 nm assigned to 2b form. Changes in the absorption spectrum occurred gradually with time when negative potential (-1.2 V) was applied. The characteristic band with λmax at 312 nm for quinoline did not disappear, but its intensity decreased. We observed the disappearance in about 240 seconds of bands at 225/229 nm. Additionally, the wide bandwidth in the region of 350-450 vanished after 120 seconds. We have also noticed a blue shift from 260 nm to 247 nm upon time generated from the n-π* transition. The newly formed compound is characterized by a distinct band at ~322 nm and 247 nm. Identification of the reduction reaction product is not straightforward.