Title: Benfluralin
CAS Registry Number: 1861-40-1
CAS Name: N-Butyl-N-ethyl-2,6-dinitro-4-(trifluoromethyl)benzenamine
Additional Names: N-butyl-N-ethyl-a,a,a-trifluoro-2,6-dinitro-p-toluidine; N-butyl-N-ethyl-2,6-dinitro-4-trifluoromethylaniline; benefin; bethrodine
Manufacturers' Codes: EL-110
Trademarks: Balan (Dow AgroSci.); Balfin (Dow AgroSci.); Benefex (Makhteshim-Agan); Quilan (Dow AgroSci.)
Molecular Formula: C13H16F3N3O4
Molecular Weight: 335.28
Percent Composition: C 46.57%, H 4.81%, F 17.00%, N 12.53%, O 19.09%
Literature References: Selective pre-emergence herbicide. Prepn: Q. F. Soper, US 3257190 (1966 to Lilly). Activity: E. F. Alder et al., Proc. Northeast. Weed Control Conf. 15, 298 (1961). Environmental fate: T. Golab et al., J. Agric. Food Chem. 18, 838 (1970). Soil degradn: J. H. Miller et al., Weed Sci. 23, 211 (1975); R. L. Zimdahl, S. M. Gwynn, ibid. 25, 247 (1977). Toxicity study: E. I. Goldenthal, Toxicol. Appl. Pharmacol. 18, 185 (1971).
Properties: Yellow-orange crystalline solid, mp 65-66.5°. Vapor pressure at 30°: 3.89´10-4 mm Hg. Soly in water at 25°: <1 mg/l. Sol in most organic solvents; less sol in ethanol. Decomp in uv light. LD50 orally in female rats: >10,000 mg/kg (Goldenthal).
Melting point: mp 65-66.5°
Toxicity data: LD50 orally in female rats: >10,000 mg/kg (Goldenthal)
Use: Herbicide. |