D-Glucose 6-phosphate sodium salt is widely used in biochemical research as a key intermediate in metabolic pathways, particularly glycolysis and the pentose phosphate pathway. It serves as a substrate in enzymatic assays to study the activity of enzymes like glucose-6-phosphate dehydrogenase, which is crucial for understanding cellular energy production and redox balance. In cell culture studies, it is employed to investigate metabolic processes and nutrient utilization in various cell types. Additionally, it is utilized in diagnostic kits to measure enzymatic activities related to metabolic disorders. Its role in metabolic studies makes it essential for advancing research in biochemistry, molecular biology, and medical diagnostics.