Enzon Pharmaceuticals is exploring strategic options for its specialty pharmaceuticals business. These options include selling the entire specialty business or selling one or more of Enzon’s marketed products, Oncaspar, DepoCyt, Abelcet and Adagen, as well as the company’s Indianapolis, IN manufacturing facility.     Enzon reported that it’s received “confidential, non-binding interest for the purchase of all or a portion” of the specialty pharma business. The co...