NLRP3-IN-91 is a potent NLRP3 inflammasome inhibitor with a Kd of 558.4 nM. NLRP3-IN-91 directly targets the NLRP3 NACHT domain, blocks inflammasome assembly and activation, and exerts anti-inflammatory effects. NLRP3-IN-91 increases survival time in a murine model of LPS (HY-D1056)-induced sepsis. NLRP3-IN-91 can be used for the research of sepsis[1].