Myrtecaine and its Impurities

Myrtecaine (Nopoxamine), sold as a combination product with diethylamine salicylate under the trade name Algesal and Algésal Suractivé. It is a local anesthetic used in topical products. Reference standards of Myrtecaine API,and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.