Vion Pharmaceuticals, Inc. is a New Haven, Connecticut-based company founded in 1937.
Vion Pharmaceuticals, Inc. is an active company based in New Haven, Connecticut and Bethesda, Maryland . Founded on January 1, 1992 , Vion operates within the pharmaceutical , healthcare , and oncology industries, focusing on cancer , diagnosis , internal medicine , and medicine . The company is located in the United States and has been assigned five patents .