Ala-Gln is widely used in cell culture and biopharmaceutical manufacturing as a stable dipeptide source of glutamine. Glutamine is essential for cell growth and protein synthesis but degrades easily in solution, forming toxic byproducts. Ala-Gln offers superior stability in aqueous environments, reducing ammonia buildup and improving the viability of cultured cells. It is especially valuable in large-scale mammalian cell cultures, such as those used in producing monoclonal antibodies and recombinant proteins. Due to its solubility and compatibility with serum-free media, Ala-Gln supports high-density cell growth and enhances product yield in bioreactors. It is also used in specialized nutritional formulations for medical and research applications where consistent amino acid supply is critical.