'Sharpsan L-50' is an algaecide and bacteriostat. Its Federal EPA registration number is: 22058-4. It was originally approved by EPA on 19 May 1976. Its registration got cancelled on 10 Oct 1989. It has a 'Danger' signal word. It has the following active ingredients: 1-Decanaminium, N-decyl-N,N-dimethyl-, chloride and Isopropyl alcohol. It's approved for 1 sites including cooling tower water. It is also approved for 2 pests and pest groups including but not limited to algae and slime-forming bacteria.