N,N'N'-triethylenethiophosphoramide, abbreviated "ThioTEPA,"'s an organophosphorus compound with the formula SP(NC2H4)3. This cancer chemotherapeutic member of the alkylating agent group was characterized in 1953 and has been in use since the 1960s. It's an analogue of N,N',N- triethylenephosphoramide (TEPA). This molecule features tetrahedral phosphorus and's structurally akin to phosphate. It's derived from aziridine and thiophosphoryl chloride. Uses It's mostly used to treat breast cancer,… (More on Thiotepa)