Tirapazamine Description Is an experimental anticancer drug that is activated to a toxic radical only at very low levels of oxygen (hypoxia). Such levels are common in human solid tumors, a phenomenon known as tumor hypoxia. Specifications Cas No. 27314-97-2 Product ID T3468 Product Name Tirapazamine Formula Wt. 178.15 Store Temp +4oC References Denny WA (2004). "Prospects for hypoxia-activated anticancer drugs". Curr Med Chem Anti-Canc Agents 4 (5): 395