U.S. EPA registered pesticide info
'Holcomb S.p.a. Outstanding Algae Growth Depressant' is an algaecide. Its Federal EPA registration number is: 323-53. It was originally approved by EPA on 22 Jul 1982. Its registration got cancelled on 30 Nov 1992. It has a 'Danger' signal word. It has the following active ingredients: Alkyl* dimethyl benzyl ammonium chloride *(60%C14, 25%C12, 15%C16). It's approved for 1 sites including swimming pool water. It is also approved for 1 pests and pest groups including but not limited to algae.