Phosphocreatine disodium salt hydrate is widely used in the field of biochemistry and medical research as a critical component in studies related to cellular energy metabolism. It serves as an essential energy buffer in muscle and nerve tissues, helping to maintain ATP levels during high-energy demand activities. This compound is particularly valuable in research focused on understanding muscle fatigue, recovery, and the mechanisms of energy transfer in cells. Additionally, it is utilized in the development of therapeutic strategies for conditions such as muscular dystrophy, heart failure, and other disorders linked to impaired energy metabolism. Its role in enhancing athletic performance and recovery has also been explored in sports science. Furthermore, it is employed in laboratory settings as a reagent for studying enzymatic reactions and metabolic pathways.