Cyclethrin

Title: Cyclethrin
CAS Registry Number: 97-11-0
CAS Name: 2,2-Dimethyl-3-(2-methyl-1-propenyl)cyclopropanecarboxylic acid 3-(2-cyclopenten-1-yl)-2-methyl-4-oxo-2-cyclopenten-1-yl ester
Additional Names: 3-(2-cyclopentenyl)-2-methyl-4-oxo-2-cyclopentenyl ester of chrysanthemummonocarboxylic acid; chrysanthemummonocarboxylic acid ester with 3-(2-cyclopenten-1-yl)-2-methyl-4-oxo-2-cyclopenten-1-ol
Molecular Formula: C21H28O3
Molecular Weight: 328.45
Percent Composition: C 76.79%, H 8.59%, O 14.61%
Literature References: Prepn and insecticidal activity: H. L. Haynes et al., Contrib. Boyce Thompson Inst. 18, 1 (1954); H. R. Guest, H. A. Stansbury, US 2891888 (1959 to Union Carbide). Product is a mixture of isomers including four racemic forms or eight optical and geometric isomers which have not yet been isolated and evaluated. Toxicology: C. P. Carpenter et al., Arch. Ind. Hyg. Occup. Med. 10, 162 (1954).
Properties: Liquid. nD30 1.5120. d2020 1.033. LD50 orally in rats: 1.4-2.8 g/kg (Carpenter).
Index of refraction: nD30 1.5120
Density: d2020 1.033
Toxicity data: LD50 orally in rats: 1.4-2.8 g/kg (Carpenter)
Use: Insecticide for flies, roaches, and grain pests.
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