2,4,6-Trinitrobenzenesulfonic acid

Trinitrobenzenesulfonic acid (C₆H₃N₃O₉S) is an nitroaryl oxidizing acid. Due to its extreme oxidative properties, if mixed with reducing agents including hydrides, sulfides, and nitrides, it may begin a vigorous reaction that culminates in almost immediate detonation. The aromatic nitro compounds may explode in the presence of a base such as sodium hydroxide or potassium hydroxide even in the presence of water or organic solvents because of the explosive tendencies of aromatic nitro compounds which increase in the presence of multiple nitro groups. Not much is known about this compound, but it is used as a peptide terminal amino group neutralizer and is currently being investigated for its effects on the immune system.