Aminolevulinic Acid Hydrochloride and its Impurities

Aminolevulinic Acid Hydrochloride, Being a precursor of a photosensitizer, 5ALA is also used as an add-on agent for photodynamic therapy. In contrast to larger photosensitizer molecules, it is predicted by computer simulations to be able to penetrate tumor cell membranes. Reference standards of Aminolevulinic Acid Hydrochloride API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.