A new Schiff base compound 4((o-tolylimino)methyl)-3-methyl-1-phenyl-1H-pyrazol-5-ol(4TM-MPP) was synthesized and characterized by elemental analyses, LC-MS, FTIR, and H-1-NMR spectra. The compound exhibits photochromic property under 365nm UV-light irradiation, which can be observed with solid state reflectance spectra. It suggests that the photoisomerization is due to photoinduced intermolecular hydrogen bond, which results in enol to keto transformation. The chemionics study is carried out using (Ni+2, H+), (Ag+, H+), and (Na+, H+, and OH) using the UV absorption spectra in solution, which shows logic behavior of INHIBIT, NOR, and XOR, respectively.