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CAS 153-94-6 D(+)-Tryptophan 3,3'-indolyl-2-alanine
1697703345
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Product information

Appearance: white flaky crystals, sweet taste; soluble in hot ethanol, alkali solution and water, insoluble in chloroform, aqueous solution is weakly acidic; mp is 281-282℃, decomposition point is 289℃; specific optical rotation [α] 23D+ 33.7° (0.5-2.0 mg/ml, H2O), [α]20D-2.8° (0.5-2.0 gm/ml, 1mol/L HCl), LD50 (rat, abdominal cavity) 4289 mg/kg.

Melting point 282-285 °C (dec.)(lit.)

Specific optical rotation 31.5 º (c=1, H2O 24 ºC)

Boiling point 342.72°C (rough estimate)

Density 1.1754 (rough estimate)

Refractive index 31° (C=1, H2O)

Storage conditionsStore at RT.

Solubility Soluble in water base (slightly), DMSO (slightly, heating, sonication), methanol (slightly)

Acidity coefficient (pKa) 2.30±0.10 (Predicted)

form powder

Color white to yellowish

Water solubility 11 g/L (20 ºC)

BRN86198

Stability is stable. Incompatible with oxidizing agents.



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