sEH-IN-21 is an orally active sEH inhibitor with IC50s of 0.1 nM for hsEH and msEH. sEH-IN-21 potently inhibits NF-kappaB signaling pathways. sEH-IN-21 shows a strong anti-inflammatory activity, decreases the release of IL-6 and TNF-alpha and maintained the integrity of the intestinal barrier. sEH-IN-21 can be used for the study of inflammatory bowel disease (IBD)[1].