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| Phenothrin | |
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| IUPAC name | (3-Phenoxyphenyl)methyl 2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate |
| Other names | Sumithrin Phenothrine Phenoxythrin Sumitrin Wellcide Pibutin Anvil Duet Anchimanaito 20S |
| Identifiers | |
| CAS number | [26002-80-2] |
| PubChem | |
| EINECS number | |
| MeSH | |
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| Properties | |
| Molecular formula | C23H26O3 |
| Molar mass | 350.451 g/mol |
| Melting point |
<25 °C |
| Boiling point |
>290 °C |
| Hazards | |
| R-phrases | R36 R38 |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Phenothrin, also called sumithrin, is a synthetic pyrethroid that kills adult fleas and ticks. It has also been used to kill head lice in humans.
Phenothrin is often used with methoprene, an insect growth regulator that interrupts the insect's biological life cycle by killing the eggs.
In 2005, the EPA required Hartz Mountain Industries to cancel uses of several flea and tick products containing phenothrin that were linked to a range of adverse reactions, including hair loss, salivation, tremors, and numerous deaths in cats and kittens. In the short term, the agreement called for new warning labels on the products.
As of March 31, 2006, the sale and distribution of Hartz's phenothrin-containing flea and tick products for cats has been terminated. However, EPA's product cancellation order did not apply to Hartz flea and tick products for dogs, and Hartz continues to use phenothrin in a concentration of 85.7% in many of its flea and tick products for dogs.
References
- Hartz Flea and Tick Drops for Cats and Kittens to be Cancelled, US Environmental Protection Agency
- Phenothrin and s-Methoprene; Product Cancellation Order, US Environmental Protection Agency
- Phenothrin; Amendment to Terminate Use, US Environmental Protection Agency
- Hartz product use recommendations
- Hartz-EPA agreement letter
- External MSDS
External links
- Pyrethrins and Pyrethroids Fact Sheet - National Pesticide Information Center
- Pyrethrins and Pyrethroids Pesticide Information Profile - Extension Toxicology Network
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