Quizalofop-ethyl
Title: Quizalofop-ethyl
CAS Registry Number: 76578-14-8
CAS Name: 2-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]propanoic acid ethyl ester
Additional Names: ethyl 2-[4-(6-chloro-2-quinoxalinyloxy)phenoxy]propionate; quinofop-ethyl
Manufacturers' Codes: DPX-Y6202; NCI-96683; NC-302
Trademarks: Assure (DuPont); Targa (Nissan); Pilot (Schering)
Molecular Formula: C19H17ClN2O4
Molecular Weight: 372.80
Percent Composition: C 61.21%, H 4.60%, Cl 9.51%, N 7.51%, O 17.17%
Literature References: Post-emergence herbicide for control of grassy weeds in broad-leaved crops. Prepn and herbicidal activity: Y. Ura et al., DE 3004770 (1980 to Nissan), C.A. 94, 103421h (1981). Prepn and structure-activity relationships: G. Sakata et al., J. Pestic. Sci. 10, 61 (1985). Pharmacological effects in laboratory animals: K. Inokuchi et al., Oyo Yakuri 30, 509 (1985), C.A. 104, 30101s (1986). Site of action studies: T. Ikai et al., Proc. Br. Crop Prot. Conf. - Weeds 1985, 163. Account of properties, toxicity, crop tolerance: G. Sakata et al., Proc. 10th Conf. Int. Congr. Plant Prot. 1, 315 (1983).
Properties: White crystals, mp 92-93°. bp0.2 220°. Practically insol in water (0.3 ´ 10-6 g/ml at 20°). Soly in acetone, ethanol, benzene, xylene at 20° (g/ml): 0.11, 0.009, 0.29, 0.12. LD50 in male, female rats, male, female mice (mg/kg): 1670, 1480, 2350, 2360 orally; all 10,000 dermally. LC50 (96 hr) in rainbow trout: 10.7 mg/l (Sakata).
Melting point: mp 92-93°
Boiling point: bp0.2 220°
Toxicity data: LD50 in male, female rats, male, female mice (mg/kg): 1670, 1480, 2350, 2360 orally; all 10,000 dermally; LC50 (96 hr) in rainbow trout: 10.7 mg/l (Sakata)
Use: Herbicide.

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