Teflubenzuron
Title: Teflubenzuron
CAS Registry Number: 83121-18-0
CAS Name: N-[[(3,5-Dichloro-2,4-difluorophenyl)amino]carbonyl]-2,6-difluorobenzamide
Additional Names: 1-(3,5-dichloro-2,4-difluorophenyl)-3-(2,6-difluorobenzoyl)urea
Manufacturers' Codes: CME-134
Trademarks: Nomolt (BASF)
Molecular Formula: C14H6Cl2F4N2O2
Molecular Weight: 381.11
Percent Composition: C 44.12%, H 1.59%, Cl 18.61%, F 19.94%, N 7.35%, O 8.40%
Literature References: Insect growth regulator; inhibits chitin biosynthesis and moulting. Prepn: H.-M. Becher et al., EP 52833; eidem, US 4457943 (1982, 1984 both to Celamerck). Physical properties and bioactivity: eidem et al., Proc. 10th Int. Congr. Plant Prot. 1, 408 (1983). Field trials in soybeans: D. A. Herbert, J. D. Harper, J. Econ. Entomol. 78, 333 (1985). Efficacy vs fire ants (Solenopsis invicta Buren): D. F. Williams et al., Fla. Entomol. 80, 84 (1997).
Properties: mp 221-224°. Vapor pressure (20°): 8 ´ 10-12 mbar. Soly at 20-23° (g/100 ml): hexane 0.005; toluene 0.085; ethanol 0.14; acetone 1.0; DMSO 6.6. Soly in water (20-23°): 20 ppb. LD50 orally in rats: >5000 mg/kg (Becher).
Melting point: mp 221-224°
Toxicity data: LD50 orally in rats: >5000 mg/kg (Becher)
Use: uSE: Insecticide.

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