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D-Alanine

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D-Alanine Basic information
D-Alanine Chemical Properties
  • Melting point:291 °C (dec.)(lit.)
  • Boiling point:212.9±23.0 °C(Predicted)
  • alpha -14.5 º (c=10, 6N HCl)
  • Density 1.4310 (estimate)
  • refractive index -14 ° (C=2, 6mol/L HCl)
  • storage temp. Keep in dark place,Inert atmosphere,Room temperature
  • solubility H2O: soluble
  • pka2.31±0.10(Predicted)
  • form Crystalline Powder or Crystals
  • color White to off-white
  • Water Solubility 155 g/L (20 ºC)
  • Merck 14,204
  • BRN 1720249
  • CAS DataBase Reference338-69-2(CAS DataBase Reference)
  • NIST Chemistry ReferenceD-Alanine(338-69-2)
  • EPA Substance Registry SystemD-Alanine (338-69-2)
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 24/25-36-26
  • WGK Germany 3
  • TSCA Yes
  • HazardClass IRRITANT
  • HS Code 29224995
MSDS
D-Alanine Usage And Synthesis
  • Chemical PropertiesWhite Crystalline Powder
  • DefinitionChEBI: The D-enantiomer of alanine.
  • Purification MethodsCrystallise alanine from H2O or aqueous EtOH, i.e. crystallise it from 25% EtOH in water, or recrystallise it from 62.5% EtOH, wash it with EtOH and dry it to constant weight in vacuo over P2O5. [Gutter & Kegeles J Am Chem Soc 75 3893 1953, Walsh J Biol Chem 264 2394 1989.] 2,2'-Iminodipropionic acid is a likely impurity. [Beilstein 4 IV 2480. 2481.]
D-Alanine Preparation Products And Raw materials
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