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Methyl 3-amino-2-pyrazinecarboxylate

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Methyl 3-amino-2-pyrazinecarboxylate Basic information
Methyl 3-amino-2-pyrazinecarboxylate Chemical Properties
  • Melting point:169-172 °C(lit.)
  • Boiling point:300.8±37.0 °C(Predicted)
  • Density 1.319±0.06 g/cm3(Predicted)
  • storage temp. Refrigerator
  • pka-0.30±0.10(Predicted)
  • form Crystalline Powder
  • color Yellow
  • BRN 127495
  • InChIKeyINCSQLZZXBPATR-UHFFFAOYSA-N
  • CAS DataBase Reference16298-03-6(CAS DataBase Reference)
Safety Information
  • Hazard Codes Xi
  • Risk Statements 36/37/38
  • Safety Statements 22-24/25-37/39-26
  • WGK Germany 3
  • HazardClass IRRITANT
  • HS Code 29339900
MSDS
Methyl 3-amino-2-pyrazinecarboxylate Usage And Synthesis
  • Chemical Propertiesyellow crystalline powder
  • Purification MethodsThe ester forms yellow needles from H2O (100 parts using charcoal). If it contains the free acid (see IR), then dissolve it in CH2Cl2, wash it with saturated aqueous Na2CO3, brine, dry over MgSO4 filter, evaporate and recrystallise the residue. The free acid has m 203-204o (dec) [UV: Brown & Mason J Chem Soc 3443 1956] and pK1 <1 and pK2 3.70. The ammonium salt has m 232o(dec) (from aqueous Me2CO) and the amide has m 239.2o (from H2O) [Ellingson et al. J Am Chem Soc 67 1711 1945]. [Beilstein 25 III/IV 4412.]
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