(R)-1-(3-hydroxypropyl)-5-(2-((2-(2-(2,2,2-trifluoroethoxy)phenoxy)ethyl)amino)propyl)indoline-7-carbonitrile hydrochloride,(R)-1-(3-hydroxypropyl)-5-(2-((2-(2-(2,2,2-trifluoroethoxy)phenoxy)ethyl)amino)propyl)indoline-7-carbonitrile hydrochloride,"An impurity in the synthesis of Silodosin, an a1a-adrenoceptor antagonist. It is used in treatment of benign prostatic hypertophy.",Silodosin Impurity