Piperonyl butoxide

Piperonyl butoxide (PBO) is a chemical compound often used as a synergist in the application of insecticides. It is a semi-synthetic derivative of safrole.

History

Piperonyl butoxide was first registered in the United States in 1957. It was initially used in combination with pyrethrins, a class of naturally occurring insecticides, to enhance their effectiveness.

Chemistry

Piperonyl butoxide is an organic compound that is classified as a waxy solid at room temperature. It has a slight, characteristic odor. The chemical formula for piperonyl butoxide is C19H30O5.

Mode of Action

Piperonyl butoxide works by inhibiting the natural defense mechanisms of insects. It blocks the action of enzymes that would otherwise break down the insecticides before they can take effect. This allows the insecticides to be more effective.

Uses

Piperonyl butoxide is used in a variety of insecticide products, including those for home, garden, and veterinary use. It is often combined with other insecticides such as permethrin, tetramethrin, and resmethrin.

Safety and Environmental Impact

While piperonyl butoxide is not considered highly toxic to humans or animals, it can cause irritation if it comes into contact with the skin or eyes. It is also toxic to fish and other aquatic organisms.

Regulation

In the United States, products containing piperonyl butoxide are regulated by the Environmental Protection Agency (EPA). The EPA classifies piperonyl butoxide as a Group C, possible human carcinogen.

See Also

• Insecticide
• Synergist
• Pyrethrin
• Permethrin
• Tetramethrin
• Resmethrin

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Piperonyl_butoxide

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  2D structure of Piperonyl butoxide
• 3D structure of Piperonyl butoxide
  3D structure of Piperonyl butoxide