glutanicacid

Chemical: Oxyglutaric acid, Unsymmetrical hydroxy pyro tartaric acid. C5H8O5 or CH(OH)-COOH CH2 CH2-COOH. Obtained by pa ing nitrous gas into a solution of glutamic acid in nitric acid, or by acting on a dilute solution of glutamic acid in hydrochloric acid by pota ium nitrite, evaporating on a water bath and slaking out with ether. It forms small crystals, which melt at 72°. When heated to 190°, the anhydride is formed. Heated with hydriodic acid to 120°, glutanic acid is reduced to normal pyro tartaric acid. Glutanic acid forms crystalline salts, called glut a nates, which are only slightly soluble in cold water.