Tamsulosin EP Impurity C

N-[2-(2-Ethoxyphenoxy)ethyl]-(R)-Tamsulosin (Tamsulosin EP Impurity A) is derived from 5-[(2R)-2-Aminopropyl]-2-methoxybenzenesulfonamide (A628695), which is a precursor in the synthesis of Tamsulosin (T006350) and other alpha-andregenic antagonists. (R)-Tamsulosin is a specific α1-adrenoceptor antagonist. It is used in the treatment of benign prostatic hypertrophy.