Used primarily in biochemical research, it serves as a cofactor in enzymatic reactions, particularly in redox processes. It is essential in studies involving NADPH-dependent enzymes, such as those in metabolic pathways like the pentose phosphate pathway. Its role in regenerating antioxidants like glutathione makes it valuable in oxidative stress research. Additionally, it is utilized in pharmaceutical development to test drug interactions with NADPH-dependent systems. In industrial applications, it aids in the production of fine chemicals and biofuels through enzymatic synthesis. Its reducing properties are also leveraged in analytical chemistry for detecting and quantifying specific biomolecules.