6142. Metobromuron

Nomenclature

CAS number: 3060-89-7
N′-(4-Bromophenyl)-N-methoxy-N-methylurea; 3-(p-bromophenyl)-1-methoxy-1-methylurea; Ciba 3126; Pattonex (Makhteshim-Agan); Patoran (Syngenta).
C9H11BrN2O2; mol wt 259.10.
C 41.72%, H 4.28%, Br 30.84%, N 10.81%, O 12.35%.

Description and references

Prepd by bromination of N-phenyl-N′-methoxy-N′-methylurea: H. Martin et al., CH 405821; eidem, US 3288851 (both 1966 to Ciba). Toxicity study: S. Novakova, S. Dinoeva, Egeszsegtudomany 17, 233 (1973), C.A. 80, 56258j (1974).

Chemical structure

Properties

Crystals from cyclohexane, mp 95-96°. Vapor pressure at 20°: 3×106 mm Hg. Soly in water at 20° = 320 ppm. Sol in methanol, ethanol, acetone, chloroform. LD50 orally in rats: 3875 mg/kg (Novakova, Dinoeva).

Use

Herbicide.