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5-METHYL-DL-TRYPTOPHAN

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5-METHYL-DL-TRYPTOPHAN Basic information
5-METHYL-DL-TRYPTOPHAN Chemical Properties
  • Melting point:~275 °C (dec.)
  • Boiling point:358.94°C (rough estimate)
  • alpha [α]D20 -1~+1゜ (c=1, dil. HCl)
  • Density 1.1402 (rough estimate)
  • refractive index 1.6660 (estimate)
  • storage temp. Sealed in dry,Room Temperature
  • form Powder
  • color Off-white
  • BRN 20225
  • CAS DataBase Reference951-55-3(CAS DataBase Reference)
Safety Information
  • Safety Statements 22-24/25
  • WGK Germany 3
  • 8
  • HS Code 29339900
MSDS
5-METHYL-DL-TRYPTOPHAN Usage And Synthesis
  • Chemical Propertiesoff-white powder
  • Purification MethodsCrystallise dl-5-methyltryptophan from aqueous EtOH after dissolving it in aqueous NaOH, precipitating with AcOH, filtering the solid off and drying for 24hours at 50o. [Jackman & Archer J Am Chem Soc 68 2105 1946, Beilstein 22 IV 6815.] The picrate crystallises from MeOH with m 202o(dec). The N-phenylcarbamoyl derivative crystallises from aqueous MeOH with m 202o. [Gordon & Jackson J Biol Chem 110 151, 154 1935.]
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