9677. Trifloxystrobin

Nomenclature

CAS number: 141517-21-7
(αE)-α-(Methoxyimino)-2-[[[(E)-[1-[3-(trifluoromethyl)phenyl]ethylidene]amino]oxy]methyl]benzeneacetic acid methyl ester; (E,E)-methoxyimino-[2-[1-(3-trifluoromethylphenyl)ethylideneaminooxymethyl]phenyl]acetic acid methyl ester; CGA-279202; Flint (Bayer CropSci.); Compass (Bayer); Gem (Bayer CropSci.); Twist (Bayer CropSci.).
C20H19F3N2O4; mol wt 408.37.
C 58.82%, H 4.69%, F 13.96%, N 6.86%, O 15.67%.

Description and references

Strobilurin fungicide. Prepn: J. M. Clough et al., EP 472300; eidem, US 5238956 (1992, 1993 both to ICI). Field trial in fruit trees: M. Reuveni et al., Crop Prot. 19, 335 (2000). Review of physical properties, biological properties and field trials: P. Margot et al., Brighton Crop Prot. Conf. - Pests Dis. 1998, 375-382.

Chemical structure

Properties

Odorless white powder, mp 72.9°. bp≈312°; decompn starting at 285°. Soly in water at 25°: 610 μg/l. Vapor pressure at 25°: 3.4 × 106 Pa. Log P at 25° (n-octanol/water): 4.5. LD50 in rats (mg/kg): >5000 orally; >2000 dermally. LC50 by inhalation in rats (mg/m3): >4646. LC50 in bobwhite quail (mg/kg): >2000. LC50 in rainbow trout (mg/l): 0.015 (Margot).

Use

Agricultural fungicide.