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CAS No 81777-89-1 , 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-1,2-oxazolidin-3-one

  • Name: 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-1,2-oxazolidin-3-one
  • Synonyms: 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-1,2-oxazolidin-3-one; Command; Gamit; 81777-89-1; 2-(2-Chlorobenzyl)-4,4-dimethylisoxazolidin-3-one; HSDB 6614; Magister; Clomazone [ISO];Dimethazone;
  • CAS Registry Number:
  • Transport: 2902
  • Melting Point: 25 ºC
  • Flash Point: 157 °C
  • Boiling Point: 275.4 ºC
  • Density: 1.192
  • Refractive index: 1.55
  • Safety Statements: Moderately toxic by ingestion, inhalation,and skin contact. Experimental reproductive effects. When heated to decomposition it emits toxic vapors of NOx and Cl−.
  • Hazard Symbols: Moderately toxic by ingestion, inhalation, and skin contact. A reproductive hazard.
  • Flash Point: 157 °C
  • Molecular Weight: 239.69806
  • InchiKey: KIEDNEWSYUYDSN-UHFFFAOYSA-N
  • InChI: InChI=1S/C12H14ClNO2/c1-12(2)8-16-14(11(12)15)7-9-5-3-4-6-10(9)13/h3-6H,
    7-8H2,1-2H3
  • Risk Statements: 20/22-36/38
  • Molecular Formula: C12H14ClNO2
  • Molecular Structure:CAS No:81777-89-1 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-1,2-oxazolidin-3-one

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References of 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-1,2-oxazolidin-3-one
Title: Clomazone
CAS Registry Number: 81777-89-1
CAS Name: 2-[(2-Chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone
Synonyms: dimethazone
Manufacturers' Codes: FMC-57020
Trademarks: Command (FMC)
Molecular Formula: C12H14ClNO2
Molecular Weight: 239.70
Percent Composition: C 60.13%, H 5.89%, Cl 14.79%, N 5.84%, O 13.35%
Literature References: Pre-emergence herbicide; inhibits biosynthesis of photosynthetic pigments in susceptible species. Prepn: J. H. Chang, BE 889040; idem, US 4405357 (1982, 1983 both to FMC). Use on soybeans: M. P. Mascianica, Proc. Annu. Meet. Northeast. Weed Sci. Soc. 39, 25 (1985); on white potatoes: C. C. Kupatt et al., ibid. 166. Fate in soil: T. L. Mervosh et al., J. Agric. Food Chem. 43, 537 (1995). Review of properties and analytical methods: A. W. Chen in Comprehensive Analytical Profiles of Important Pesticides, J. Sherma, T. Cairns, Eds. (CRC Press, Boca Raton, 1993) pp 131-148.
Properties: Light brown viscous liquid, mp 25°. Vapor pressure at 25°: 1.4 ′ 10-6 mm Hg. d20 1.19. Soly in water: 1100 ppm. Readily sol in chloroform, methanol, methylene chloride, heptane, acetonitrile, toluene, acetone, dioxane, xylene, hexane. LD50 in male rats, female rats, mallard duck-bobwhite quail (mg/kg): 2077, 1369, >2510 orally; in rabbits (mg/kg): >2000 dermally (Chen).
Melting point: mp 25°
Density: d20 1.19
Toxicity data: LD50 in male rats, female rats, mallard duck-bobwhite quail (mg/kg): 2077, 1369, >2510 orally; in rabbits (mg/kg): >2000 dermally (Chen)
Use: Herbicide.