CAS: 56-69-9, 5-hydroxy-DL-tryptophan instruction English name: 5-Hydroxy-DL-tryphophane; DL-5-HTP Other names: 5-hydroxytrypsin amino acid CAS number: 56-69 -9C11H12N2O3=220.22 grade: Puriss content: ≥99.0% (NT) Melting point: 290-300 ° C Properties: white crystals. It is stable when solid, and the acidic solution can be stable for more than one year at -10 °C. Neutral or alkaline solutions increase their effect on oxygen, and inert gases prevent their decomposition. Solubility (g/100ml): 1 at 100 °C in water, 5.5 at 100 °C; 2.5 for 50% boiling ethanol: Biochemical study preservation: 2-8 °C
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