Sofalcone and its Impurities

Sofalcone (INN) is an oral gastrointestinal medication used in Japan.It is a synthetic analog of sophoradin,a type of natural phenol found in Sophora tonkinensis, an herb used in traditional Chinese medicine. Reference standards of Sofalcone API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.