7990. Pyriproxyfen

Nomenclature

CAS number: 95737-68-1
2-[1-Methyl-2-(4-phenoxyphenoxy)ethoxy]pyridine; 4-phenoxyphenyl (RS)-2-(2-pyridyloxy)propyl ether; S-9318; S-31183; Sumilarv (Sumitomo).
C20H19NO3; mol wt 321.37.
C 74.75%, H 5.96%, N 4.36%, O 14.94%.

Description and references

Juvenile hormone mimic. Prepn: S. Nishida et al., GB 2140010; eidem, US 4751225 (1984, 1988 both to Sumitomo). Ovicidal activity: K. R. S. Ascher, M. Eliyahu, Phytoparasitica 16, 15 (1988). Environmental persistence study: C. H. Schaefer et al., Ecotoxicol. Environ. Saf. 21, 207 (1991). Field trial to control tsetse flies: J. W. Hargrove, P. A. Langley, Bull. Entomol. Res. 83, 361 (1993).

Chemical structure

Properties

Pale yellow liquid. nD20.5 1.5823. Solidifies upon standing to give crystals, mp 49.7°.

Use

Insecticide.

Therapeutic Category (Veterinary)

Ectoparasiticide.