TGR5 Receptor Agonist 3 (Compound 19) is a soft-agent G-protein-coupled bile acid receptor 1 (GPBAR1, TGR5) agonist with reduced gallbladder-filling effects (favorable gallbladder safety), with EC50s of 16.4 and 209 nM for hTGR5 and mTGR5, respectively.