ML-9 HCl (ML-9 hydrochloride) is a selective and potent inhibitor of Akt kinase, myosin light chain kinase (MLCK) and stromal interaction molecule 1 (STIM1). ML-9 HCl is also a potent inhibitor of Ca2+-permeable channels. ML-9 HCl is a lysosomotropic agent targeting autophagy and cell death.