5509. Linuron

Nomenclature

CAS number: 330-55-2
N′-(3,4-Dichlorophenyl)-N-methoxy-N-methylurea; methoxydiuron; Du Pont Herbicide 326; HOE-2810; Afalon (Hoechst); Linurex (Makhteshim-Agan); Lorox (DuPont).
C9H10Cl2N2O2; mol wt 249.09.
C 43.40%, H 4.05%, Cl 28.47%, N 11.25%, O 12.85%.

Description and references

Selective pre- and post-emergence herbicide. Preparation: Sherer, Heller, US 2960534 (1960 to Hoechst). Degradn in soil: G. F. Kempson-Jones, R. J. Hance, Pestic. Sci. 10, 449 (1979). Toxicity study: G. W. Bailey, J. L. White, Residue Rev. 10, 97 (1965).

Chemical structure

Properties

mp 93-94°. Vapor pressure at 24°: 1.5 × 105 mm Hg. Soly in water: 75 ppm. Partially sol in acetone, alcohol, benzene, toluene, xylene. LD50 orally in rats: 1500 mg/kg (Bailey, White).

Use

Herbicide.