FTX-6058 hydrochloride is a potent and orally active inhibitor of Embryonic Ectoderm Development (EED). FTX-6058 hydrochloride can induce HbF protein expression in cell and murine models. FTX-6058 hydrochloride can be used for the research of select hemoglobinopathies, including sickle cell disease and β-thalassemia.