Thiotepa / Tepadin

Thiotepa (INN[3]), sold under the brand name Tepadina, is a medication used to treat cancer.

Thiotepa is an organophosphorus compound with the formula (C2H4N)3PS. It is an analog of N,N′,N′′-triethylenephosphoramide (TEPA), which contains tetrahedral phosphorus and is structurally akin to phosphate. It is manufactured by heating aziridine with thiophosphoryl chloride