High Quality Content by WIKIPEDIA articles! Sodium dichloroisocyanurate (INN: sodium troclosene, troclosenum natricum or NaDCC) is a chemical compound used as a disinfectant, biocide, industrial deodorant and detergent. It is found in some newer water purification tablets/filters. It is more efficient than formerly used halazone water disinfectant. Mechanism of action is the release of chlorine in low concentrations by constant rate.