52-24-4 AIDS-112651 AIDS112651 Aziridine, 1,1',1''-phosphinothioylidynetris- CBC 806495;Girostan Ledertepa NSC6396 Oncotepa Oncothio-tepa Oncotiotepa Phosphine sulfide, tris(1-aziridinyl)- Stepa TSPA Tespa Tespamin Tespamine Thiofozil Thiophosphamide Thiotepa Thiotriethylenephosphoramide Tifosyl Tio TEF Tiofosfamid Tiofosyl Tiofozil