Pyrazoline is a secondary metabolic compound with five circular heterocyclic structures that has three carbon atoms and two nitrogen atoms position close to each other. Pyrazoline has high toxicity and possess various bioactivities such as antitumor and anticancer agent. Pyrazoline (5-(4-bromophenyl)-3-(1- hydroxynaphthalene-2-yl)-1-phenyl-4,5-dihydro-1H-pyrazole has successfully synthesiz…