PAT1inh-B01 is a selective SLC26A6 inhibitor. PAT1inh-B01 inhibits PAT1 (a Cl-/HCO3- exchanger) -mediated anion exchange (IC50: 350 nM) . PAT1inh-B01 blocks fluid absorption in small intestine. PAT1inh-B01 can be used for research of small intestinal hyposecretory disorders[1].