Dichloroisocyanuric acid

Dichloroisocyanuric acid, also known as dichlor, dichloro-s-triazinetrione, and troclosene, is a chemical compound. It is an oxidizer, bacteriocide, algicide, and cleaning agent that reacts with water to form hypochlorous acid, which is related to bleach.

The sodium salt form is called sodium dichloroisocyanate or sodium dichloroisocyanurate or sodium dichloro-s-triazinetrione, which is the active ingredient in the powderized cleanser Comet and is also used as a pool disinfectant.