Antibacterialagent 202 (Compound 45c) is a low-cytotoxicity antibacterial agent (Bacterialinhibitor) that exhibits good activity against Gram-negative bacteria, including Escherichia coli, Klebsiella pneumoniae, and particularly Pseudomonas aeruginosa, with a minimum inhibitory concentration (MIC) of 7.8-31.25 μM. It exerts its antibacterial effect by disrupting cell membrane integrity and is useful for research on bacterial infections.