2-(2-Aminoethyl)benzonitrile Hydrochloride is an intermediate in the synthesis of (1S,3R,4S)-quinuclidin-3-yl 2-benzoylphenethylcarbamate (Q795815), which is an impurity in the synthesis of Solifenacin (S676700), muscarinic M3 receptor antagoinst. (1S,3R,4S)-quinuclidin-3-yl 2-benzoylphenethylcarbamate is used in treatment of urinary incontinence.