Chitin synthase-IN-15 (Compound 6k) is an inhibitor of chitin synthase and exhibits insecticidal activity against the diamondback moth (Plutella xylostella) with LC50 values of 0.789 and 0.951 μg/mL. It effectively disrupts molting, causes larval death, and leads to abnormal pupation, resulting in a significant reduction in pest populations. Chitin synthase-IN-15 is considered an insecticide with favorable ecological safety.