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Label & SDS

EPA Label: link

Registration information

  • U.S. EPA Registration number: 1757-74
  • U.S. EPA Status: CANCELLED

Description

'Biosperse 4505' is an algaecide and microbicide/microbistat. Its Federal EPA registration number is: 1757-74. It was originally approved by EPA on 25 Sep 1981. Its registration got cancelled on 24 Oct 2003. It has a 'Danger' signal word. It has the following active ingredients: 2-Methyl-3(2H)-isothiazolone and 5-Chloro-2-methyl-3(2H)-isothiazolone. It's approved for 3 sites including air washer water, cooling tower water, and evaporative condenser water. It is also approved for 5 pests and pest groups including but not limited to algae, deterioration/spoilage bacteria, fungi, slime-forming bacteria, and slime-forming fungi.

Original registration date:

  • 25 Sep 1981

Cancellation date:

  • 24 Oct 2003

Alternative names:

  • BIOSPERSE 4505Active

Registrant:

  • DREW INDUSTRIAL DIVISION
    Ashland Chemical Company, Division Of Ashland Inc.
  • Address:
    One Drew Plaza
    Boonton, NJ 07005

Active ingredients:

  • 2-methyl-3(2h)-isothiazolone 0.17%
  • 5-chloro-2-methyl-3(2h)-isothiazolone 0.57%
  • Other ingredients 99.26%

Signal word:

  • Danger

Product type:

  • Algaecide
  • Microbicide/microbistat

Formulation:

  • Ready-to-Use Solution

Registered target pests:

  • Algae
  • Deterioration/spoilage bacteria
  • Fungi (e.g., metal working coolants)
  • Slime-forming bacteria
  • Slime-forming fungi (paper mills/water systems)

Registered target sites:

  • Air washer water
  • Cooling tower water
  • Evaporative condenser water