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SHANGHAI PASSIONO INT'L CO., LTD.
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Product name: L-Tryptophan
Description: White or yellow slightly crystalline powder
Structure:
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L-Tryptophan
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IUPAC name
Tryptophan or (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
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Other names
2-Amino-3-(1H-indol-3-yl)propanoic acid
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Identifiers
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CAS number
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73-22-3
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PubChem
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6305
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ChemSpider
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6066
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UNII
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8DUH1N11BX
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ChEMBL
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CHEMBL54976
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IUPHAR ligand
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717
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ATC code
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N06AX02
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Properties
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Molecular formula
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C11H12N2O2
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Molar mass
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204.23 g mol−1
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Solubility inwater
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Soluble: 0.23 g/L at 0 °C,
11.4 g/L at 25 °C,
17.1 g/L at 50 °C,
27.95 g/L at 75 °C
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Solubility
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Soluble in hot alcohol, alkali hydroxides; insoluble in chloroform.
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Acidity (pKa)
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2.38 (carboxyl), 9.39 (amino)
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Product function:
L-Tryptophan is a naturally occurring amino-acid. It is a precursor for the mood-regulating serotonin the brain neurotransmitter linked with pleasure and fulfilment. L-Tryptophan's is used to alleviate depression, support alcohol withdrawal and to aid weight loss. It plays an important role in our diets, and aging individuals are often in need of it as a supplement.
Specification:
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Test Items
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PECIFICATION
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Description:
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White or yellow slightly
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Specific Rotation:
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–30.50 to –32.5degree
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PH:
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5.5~6.4
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Chloride (Cl):
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0.05% Max
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Sulfate:
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NMT0.03%
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Heavy Metals:
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NMT 0.0015%
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Arsenic:
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NMT1ppm
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Iron:
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NMT 0.003%
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Loss on drying:
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NMT 0.3%
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Residue on Ignition:
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NMT 0.1%
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Assay:
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99.0-101.0%
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