GPX4-IN-14 (compound 2c) acts as a GPX4 inhibitor, exhibiting both free radical scavenging activity (with a maximum scavenging rate of 72.52%) and anti-tumor proliferation activity in vitro. This compound targets GPX4 protein, elevating lipid peroxide and intracellular Reactive Oxygen Species (ROS) levels, which induces ferroptosis and contributes to its anti-tumor proliferation effects.