Solifenacin EP Impurity A

: (S)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline; (1S)-1,2,3,4-Tetrahydro-1-phenylisoquinoline; (+)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline; (S)-(+)-1-Phenyl-1,2,3,4-tetrahydroisoquinoline; Solifinacin S Phenyl Tetrahydroisoquinoline Impurity