STING-IN-2 (C-170) is a potent and covalent STING inhibitor. STING-IN-2 efficiently inhibits both mouse STING (mmSTING) and human STING (hsSTING). STING-IN-2 can be used for autoinflammatory disease research.In Vitro: THP-1 cells are pretreated with STING-IN-2 (C-170; 0.5 μM) and stimulated with cGAMP. STING-IN-2 (C-170) treatment decreases the IFNB1 and TNF mRNA levels, and also reduces the p-TBK1 levels.