Adenine hydrochloride is widely used in biochemical research and pharmaceutical applications. It serves as a precursor in the synthesis of nucleotides and nucleic acids, making it essential for studies in molecular biology and genetics. In cell culture, it is often added to media to support the growth of certain cell types, particularly in hybridoma technology for monoclonal antibody production. Additionally, it is utilized in the development of antiviral and anticancer drugs due to its role in nucleotide metabolism. Its hydrochloride form enhances solubility, facilitating its use in various experimental and industrial processes.