Ligand. Chenodeoxycholic acid, bile acid and FXR ligand, activates nuclear receptors involved in cholesterol metabolism, EC50 concentrations for activation of FXR (farnesoid X receptor) range from 13-34 uM, Purity: G95%, CAS: 474-25-9, Molecular Formula: C24H40O4, Storage: -20 Degree C, Size: 5g