3962. Fenbuconazole

Nomenclature

CAS number: 114369-43-6
α-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H-1,2,4-triazole-1-propanenitrile; (R,S)-4-(4-chlorophenyl)-2-phenyl-2-[(1H-1,2,4-triazol-1-yl)methyl]butyronitrile; fenethanil; RH-7592; Enable (Dow AgroSci.); Govern (Dow AgroSci.); Indar (Dow AgroSci.).
C19H17ClN4; mol wt 336.82.
C 67.75%, H 5.09%, Cl 10.53%, N 16.63%.

Description and references

Systemic triazole antifungal for food and ornamental crops. Prepn: S. H. Shaber et al., DE 3721786; idem, US 5087635 (1988, 1992 both to Rohm & Haas). Comprehensive description: D. Driant et al., Brighton Crop Prot. Conf. - Pests Dis. 1988, 33-40. Field trials vs Botrytis infection in roses: Y. Elad et al., Crop Prot. 12, 69 (1993); vs root rot in barley: P. J. Cotterill, ibid. 273.

Chemical structure

Properties

White crystalline solid, mp 124-126°. vapor pressure (20°): 0.37 × 10-7 torr. Soly in water (25°): 0.2 ppm. Sol in common organic solvents. Insol in aliphatic hydrocarbons. LD50 in rats (mg/kg): >2000 orally; >5000 dermally (Driant).

Use

Agricultural fungicide.