Carglumic acid is an orphan drug used for the treatment of hyperammonaemia in patients with N-acetylglutamate synthase deficiency. This rare genetic disorder results in elevated blood levels of ammonia, which can eventually cross the blood-brain barrier and cause neurologic problems, cerebral edema, coma, and death. Carglumic acid was approved by the U.S. Food and Drug Administration (FDA) on 18 March 2010.; Purity: >98%(HPLC); Molecular Weight: 190.15, 200 mg