CAS No. 153-94-6
D(+)-Tryptophan
Purity: 98%, white sheet-shape crystallization, taste sweet, Soluble in hot ethanol, alkali solution and water, insoluble in chloroform, aqueous solution is weak acidity, Mp for 281-282, decompose point for 289 ℃ ℃; [alpha] than spin photometric 23D + 6.39 ° (0.5-2.0 mg/ml, H2O), [alpha] 20D - 280 ° (0.5-2.0 gm/ml, 1mol/L HCl in), LD50 (rats, celiac) 4289 mg/kg. Is the important nutrition agent, medicine on skin disease prevention as dalai agent
tryptophan
Tryptophan
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DL-Tryptophan