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Phenothrin

Phenothrin

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	4767
EINECS number	247-404-5
MeSH	Phenothrin
SMILES	CC(=CC1C(C1(C)C)C(=O)OCC2=CC(=CC=C2)OC3=CC=CC=C3)C
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

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.

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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 Corporation to cancel uses of several flea and tick products containing phenothrin that may be associated with a range of adverse reactions, including hair loss, salivation, tremors, and numerous deaths in cats and kittens. In the short term, the agreement calls for new warning labels on the products.

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

v • d • e Ectoparasiticides (P03)
Sulfur-containing products	Disulfiram
Chlorine-containing products	Lindane
Pyrethrines, including synthetic compounds	Pyrethrum · Phenothrin · Permethrin
Other ectoparasiticides, including scabicides	Benzyl benzoate · Malathion · Quassia