'Olin Pool Chlorine' is an algaecide and disinfectant. Its Federal EPA registration number is: 1258-745. It was originally approved by EPA on 21 May 1965. Its registration got cancelled on 07 Mar 1994. It has a 'Danger' signal word. It has the following active ingredients: Potassium dichloro-s-triazinetrione. It's approved for 1 sites including swimming pool water. It is also approved for 2 pests and pest groups including but not limited to algae and black algae.