Pyrazoline has been reported to have many beneficial biological activities such as antimicrobial, antioxidants, anti-inflammatory, anticancer, antipyretic and anticonvulsants. Pyrazoline analogue 3-(4-clorophenyl)-4,5-dihydro-5-(naphtalen-5-yl)-1H-pirazol (4ClA-1ND-H) was synthesized through cyclization reaction between chalcone (E)-1-(4-clorophenyl)-3-(naphtalen-5-yl)-prop-2-en-1-on (4ClA-1ND)…