L-Glutamic Anhydride Hydrochloride is the hydrochloride form of L-Glutamic Anhydride (G597085). L-Glutamic Anhydride is a related compound of L-Glutamic Acid (G596960), a non-essential amino acid. The salt form of L-Glutamic Acid is an important neurotransmitter that plays a key role in long-term potentiation and is important for learning and memory. It is also a key molecule in cellular metabolism.