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Discussion of Fiscal 2007 First Quarter Results

New York, NY 10022 Notice of Teleconference Please Reserve Date For: ENZO BIOCHEM, INC. (NYSE:ENZ) To: Interested Members of the Investment Community Subject: Discussion of Fiscal 2007 First Quarter Results with BARRY WEINER, President Date: Monday, December 11, 2006 Time: 8:30 A.M. (Eastern Time) Dial-In Number for Teleconference: (888) 562-3356. International callers dial: (973) 582-2700. When prompted, use PIN number 8179354 (for International as well). To listen, please dial in approximately ten minutes prior to the scheduled teleconference time. Replay: Dial (877) 519-4471, (International callers dial 973-341-3080), you will be prompted for PIN number 8179354. The replay will be available from Monday December 11 at 12:00 PM (E.T.) until Midnight December 25, 2006. The conference call can also be heard over the Internet at http://www.investorcalendar.com. To listen to the live call, please go to the web site at least fifteen minutes early to register, download and install any necessary audio software. A replay will be available approximately two hours after the call. Steven S. Anreder (212) 532-3232 * * *