N'-((4-(2-(Dimethylamino)ethoxy)phenyl)(phenyl)methylene)-4-methylbenzenesulfonohydrazide is an impurity of Tamoxifen (T006000), a selective estrogen response modifier (SERM), protein kinase C inhibitor and anti-angiogenetic factor. Molecular Formula: C24H27N3O3S Molecular Weight: 437.55