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Property: White to yellowish crystalline powder, smell-less or slight smelly, L- type has the bitter taste, theDL- and the D- type have little sweet taste. 289 °C decompounds,slightly soluble in water, does not dissolve in the ethyl alcohol;
Appearance: White to yellowish crystalline powder
Cas No.:73-22-3
EINECS No.:200-795-6
Molecular Formula:C11H12N2O2
Molecular Weight: 204.23
Specification:
Items | Standards |
Appearance | White crystals or crystalline powder |
Assay | 99%-100.5% |
State of solution | 95.0% Min |
Specific Rotation | -30.5~-32.5 |
Loss on Drying | 0.2% Max |
Ph | 5.4-6.4 |
Chloride | 0.02% Max |
Ammonium(NH4) | 0.02% Max |
Iron | 0.02% Max |
Sulfate | 0.02% Max |
Residue on ignition | 0.1% Max |
Heavy Metals | 0.001% Max |
Arsenic(As2O3) | 0.0001% Max |
Other Amino Acids | 0.5% Max |
Storage Condition:Store in a cool and dry place and Keep away from strong light and heat
Package: 25kg/drum
Application: Tryptophan is heterocyclic amino acid, is a kind of important and necessary amino acids for human body. It is widely applied in pharmaceutical and food fields .
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