PI-103 Hydrochloride is a dual PI3K/Akt and mTOR inhibitor exhibiting nM-level inhibition of p110α, p110β, p110δ, p110γ, DNA-PK, mTORC1, and mTORC2. PI-103 induces autophagy, mitochondrial apoptosis, and cell cycle arrest, making it suitable for leukaemia research.