'Posacyde - H' is a microbicide/microbistat. Its Federal EPA registration number is: 57804-2. It was originally approved by EPA on 17 Jun 1987. Its registration got cancelled on 10 Oct 1989. It has a 'Danger' signal word. It has the following active ingredients: Methanesulfonothioic acid, S-(2-hydroxypropyl) ester. It's approved for 2 sites including cooling tower water and industrial disposal water. It is also approved for 1 pests and pest groups including but not limited to slime-forming bacteria.