Sentox

'Sentox is a nerve gas developed by Omnicron International for the United States government. Terrorists working for Vladimir Bierko were sold the gas by Walt Cummings and James Nathanson who were working, without their knowledge for President Charles Logan, Christopher Henderson and a secretive man known as Graham.

Terrorists used the nerve gas to target a shopping mall, CTU Los Angeles, a hospital, the Wilshire Gas Company and the Russian submarie Natalia during Day 5.