Vion Pharmaceuticals Inc.

4 Science Park
New Haven, CT 06511

USA

Phone: (203) 498-4210
Fax: (203) 498-4211
Email: cswearngan@burnsmc.com
Web Site: http://www.vionpharm.com/

A. Company Profile

Vion (NASDAQ:VION) is a biotechnology company developing novel agents for the treatment of cancer.

B. Products

Product Pipelines

1. Triapine

Triapineis a potent inhibitor of ribonucleotide reductase, an enzyme important for DNA synthesis.

2. Cloretazine

Cloretazine, VNP40101M, is a unique DNA alkylating agent.