Proton one-dimensional Nuclear Magnetic Resonance spectra (¹H-NMR) with improved water-to-ethanol multipresat. Scheme [5] of Mexican monovarietal Merlot wines, with different aging schemes (samples 1 to 11, refer to Materials and Methods). Novel rich polyphenolics exposed region (5.58–8.0 ppm) with multipresat scheme has been integrated in all cases, referenced with respect sample 1 (I = 1.0). First derivative (Δ) UV-VIS absorbance spectra of each sample, at the 715 nm region is as well exposed, per case.