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(R)-(+)-alpha-Methoxy-alpha-trifluoromethylphenylacetic acid

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(R)-(+)-alpha-Methoxy-alpha-trifluoromethylphenylacetic acid Basic information
(R)-(+)-alpha-Methoxy-alpha-trifluoromethylphenylacetic acid Chemical Properties
  • Melting point:46-49 °C(lit.)
  • Boiling point:105-107 °C1 mm Hg(lit.)
  • alpha D25 +68.5 ± 1.3° (c = 1.49 in CH3OH)
  • Density 1.344 g/mL at 25 °C(lit.)
  • refractive index n20/D 1.473(lit.)
  • Flash point:>230 °F
  • storage temp. 2-8°C
  • solubility Soluble in methanol (50 mg/ 1 ml).
  • form Crystalline Low Melting Solid
  • pka1.47±0.10(Predicted)
  • Specific Gravity1.344
  • color White
  • optical activity[α]20/D +73±1°, c = 2% in methanol
  • Sensitive Hygroscopic
  • Merck 14,6280
  • BRN 2215440
  • CAS DataBase Reference20445-31-2(CAS DataBase Reference)
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 26-36
  • WGK Germany 3
  • 3-10
  • Hazard Note Irritant/Keep Cold
  • HazardClass IRRITANT, HYGROSCOPIC, KEEP COLD
  • HS Code 29189900
MSDS
(R)-(+)-alpha-Methoxy-alpha-trifluoromethylphenylacetic acid Usage And Synthesis
  • Chemical Propertieswhite crystalline low melting solid
  • Purification MethodsA likely impurity is phenylethylamine from the resolution. Dissolve the acid in Et2O/*benzene (3:1), wash with 0.5N H2SO4, then water, dry over magnesium sulfate, filter, evaporate and distil it. [Dale et al. J Org Chem 34 2543 1969, J Am Chem Soc 75 512 1973.]
(R)-(+)-alpha-Methoxy-alpha-trifluoromethylphenylacetic acid(20445-31-2)Related Product Information
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