Title: Cloquintocet-Mexyl
CAS Registry Number: 99607-70-2
CAS Name: [(5-Chloro-8-quinolinyl)oxy]acetic acid 1-methylhexyl ester
Manufacturers' Codes: CGA-185072
Molecular Formula: C18H22ClNO3
Molecular Weight: 335.83
Percent Composition: C 64.38%, H 6.60%, Cl 10.56%, N 4.17%, O 14.29%
Literature References: Safening agent to protect crops from herbicidal injury. Prepn: A. Hubele, EP 94349; idem, US 4902340 (1983, 1990 both to Ciba-Geigy). Description: J. Amrein et al., Brighton Crop Prot. Conf. - Weeds 1989, 71-76. Effects on herbicide metabolism in cereals: K. Kreuz et al., Z. Naturforsch. 46C, 901 (1991).
Properties: Odorless crystals, mp 69°. Vapor pressure (20°): 2.5 ´ 10-6 Pa. Soly in water (20°): 0.8 ppm. Sol in most organic solvents. LD50 in rats (mg/kg): >2000 orally; >2000 dermally. LC50 (4 hr) in rats: >935 mg/m3 by inhalation (Amrein).
Melting point: mp 69°
Toxicity data: LD50 in rats (mg/kg): >2000 orally; >2000 dermally; LC50 (4 hr) in rats: >935 mg/m3 by inhalation (Amrein)
Derivative Type: Mixture with clodinafop-propargyl
Trademarks: Célio (Novartis); Horizon (Novartis)
Use: Herbicide safener.

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