AUDA (compound 43) is a potent inhibitor of soluble epoxide hydrolase (sEH) with IC50 of 18 nM and 69 nM for the mouse sEH and human sEH, respectively. AUDA has anti-inflammatory activity that reduces the protein expression of MMP-9, IL-1β, TNF-α and TGF-β. AUDA downregulates Smad3 and p38 signaling pathways.