DCLK1-IN-6 (Compound 12n) is a Doublecortin-like kinase 1 (DCLK1) inhibitor with an IC50 of 58 nM. DCLK1-IN-6 significantly inhibits DCLK1 enzyme activity and its mediated inflammatory pathway. DCLK1-IN-6 has remarkable anti-inflammatory activity and significantly alleviates symptoms in acute lung injury (ALI) and sepsis mouse models. DCLK1-IN-6 can be used for acute inflammation diseases research[1].