Pyridoxal phosphate (PLP), the active form of vitamin B6, is widely used as a coenzyme in various biochemical reactions, particularly in amino acid metabolism. It plays a crucial role in transamination, decarboxylation, racemization, and other processes essential for synthesizing and breaking down amino acids. In the pharmaceutical industry, it is utilized in the production of drugs targeting neurological disorders, as it supports neurotransmitter synthesis, including serotonin, dopamine, and GABA. Additionally, it is employed in research laboratories to study enzyme mechanisms and metabolic pathways. Its role in heme synthesis for red blood cell formation, supporting immune function, and treating vitamin B6 deficiency also makes it significant in nutritional and therapeutic applications.