3876. Etofenprox

Nomenclature

CAS number: 80844-07-1
1-[[2-(4-Ethoxyphenyl)-2-methylpropoxy]methyl]-3-phenoxybenzene; 2-(4-ethoxyphenyl)-2-methylpropyl-3-phenoxybenzyl ether; ethofenprox; ethoproxyfen; MTI-500; OMS-3002; Vectron (Mitsui).
C25H28O3; mol wt 376.49.
C 79.75%, H 7.50%, O 12.75%.

Description and references

Non-ester pyrethroid insecticide. Prepn: K. Nakatani et al., FR 2481695; eidem, US 4397864 (1981, 1983 both to Mitsui Toatsu); T. K. Kim et al., Bull. Korean Chem. Soc. 8, 128 (1987). Fluorometric determn in potable water sources: M. Nakamura et al., Fresenius J. Anal. Chem. 367, 658 (2000). Field trial vs leafhoppers and planthoppers: N. V. Krishnaiah, M. B. Kalode, Crop Prot. 12, 532 (1993); vs malarial vectors: S. Nalim et al., Southeast Asian J. Trop. Med. Public Health 28, 851 (1997). Review of physical properties and field trials: T. Tanaka, Agrochem. Jpn. 1999, no. 74, 13-15.

Chemical structure

Properties

White crystalline solid, mp 36.4-38.0°. Vapor pressure (100°): 2.4×10-4mm Hg. Soly in water (25°): <1 ppb. nD20.2 1.5732. LD50 in rats, mice (mg/kg): >2880, >107200 orally; >2140, >2140 dermally (Tanaka).

Use

Insecticide.