Hyperpigmentation is a disorder of skin pigment that commonly occurs due to an increase in the process of melanogenesis, which causes changes in skin colour to appear dark. Pyrazoline and pyrazole are azole compounds with a five-ring heterocyclic nitrogen atom. Pyrazoline and pyrazole derivatives of 4- chloroacetophenone and 3,4-dimethoxybenzaldehyde were successfully shynthesized through …