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Substance Name: Cycluron [BSI:ISO]
RN: 2163-69-1

Classification Codes

  • Agricultural Chemical
  • Herbicide
  • Out-Dated Pesticide

Molecular Formula

  • C11-H22-N2-O

Molecular Weight

  • 198.3078
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Names and Synonyms

Results Name

  • Cycluron [BSI:ISO]

Name of Substance

  • Cycluron
  • Cycluron [BSI:ISO]


  • 3-Cyclooctyl-1,1-dimethylharnstoff
  • 3-Cyclooctyl-1,1-dimethylharnstoff [German]
  • 3-Cyclooctyl-1,1-dimethylurea
  • BRN 2209526
  • Caswell No. 271A
  • Cyclouron
  • Cycluron
  • EINECS 218-493-8
  • EPA Pesticide Chemical Code 035504
  • HS 61
  • HSDB 1553
  • N-Cyclooctyl-N',N'-dimethylurea
  • OMU
  • Urea, 3-cyclooctyl-1,1-dimethyl-
  • Urea, N'-cyclooctyl-N,N-dimethyl-

Systematic Names

  • Cycluron
  • Urea, 3-cyclooctyl-1,1-dimethyl-
  • Urea, N'-cyclooctyl-N,N-dimethyl-

Registry Numbers

CAS Registry Number

  • 2163-69-1


  • V8K90CTK5Q

System Generated Number

  • 0002163691

Structure Descriptors








Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mammal (species unspecified) LD50 oral 2600mg/kg (2600mg/kg)   "Pflanzenschutz-und Schaedlingsbekaempfungsmittel: Abriss einer Toxikologie und Therapie von Vergiftungen," 2nd ed., Klimmer, O.R., Hattingen, Fed. Rep. Ger., Hundt-Verlag, 1971Vol. -, Pg. 81, 1971.
mouse LD50 intraperitoneal 300mg/kg (300mg/kg)   "Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel," Perkow, W., Berlin, Verlag Paul Parey, 1971-1976Vol. -, Pg. -, 1971/1976.
mouse LD50 unreported 300mg/kg (300mg/kg)   "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 229, 1971.
rat LD50 oral 1500mg/kg (1500mg/kg)   Pesticide Chemicals Official Compendium, Association of the American Pesticide Control Officials, Inc., 1966. Vol. -, Pg. 294, 1966.
rat LD50 unreported 1125mg/kg (1125mg/kg)   Environmental Quality and Safety, Supplement. Vol. 3, Pg. 618, 1975.

Physical Properties

Physical Property Value Units Temp (deg C) Source
Melting Point 138 deg C   EXP
log P (octanol-water) 2.840 (none)   EST
Water Solubility 1200 mg/L 20 EXP
Vapor Pressure 6.67E-05 mm Hg 25 EST
Henry's Law Constant 1.24E-08 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 2.50E-11 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.