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Tryptophan #73-22-3

Tryptophan #73-22-3
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Product Parameters
It is used in amino acid infusions. It is often used in combination with iron preparations, vitamins, etc. When used together with vitamin B6, it can improve depression and prevent and treat pellagra. As a sedative for insomnia, it is used in combination with L-dopa for the treatment of Parkinson's disease. It is carcinogenic to experimental animals; adverse reactions include nausea, anorexia, drowsiness, etc. It is forbidden to be used in combination with monoamine oxidase inhibitors.

Uses

As a nutritional supplement. Tryptophan contained in egg white protein, fish meat, corn flour, etc. is a limiting amino acid, and its content is relatively low in grains such as rice. It can be used in combination with lysine, methionine, and threonine for amino acid fortification. Adding 0.02% tryptophan and 0.1% lysine to corn products can significantly improve the protein efficiency ratio. It is an important component of amino acid infusions and comprehensive amino acid preparations. It can be used to treat niacin deficiency.

PropertyValue
Melting Point289-290 °C (dec.)(lit.)
Specific Rotation-31.1 ° (c=1, H2O)
Boiling Point342.72°C (rough estimate)
Density1.34
Bulk Density400kg/m³
Refractive Index-32 ° (C=1, H2O)
Storage Condition2-8°C
Solubility20%NH₃:0.1 g/mL at 20 °C, clear, colorless
FormPowder
pKa2.46 (at 25°C)
ColorWhite to off-white
pH Value5.5-7.0 (10g/l, H2O, 20°C)
OdorWhite crystals or colorless powder, slightly bitter taste
Biological Sourcenon-animal source
Optical Rotation[α]20/D 31.5±1°, c = 1% in H2O
Water Solubility11.4 g/L (25 °C)
Merck14,9797
BRN86197
StabilityStable. Incompatible with strong acids and strong oxidizing agents.
InChIKeyQIVBCDJIJAPQS-VIFVPBQESA-N
LogP0.704 (est)
CAS Database73-22-3(CAS DataBase Reference)
NIST Chemistry InfoL-Tryptophan(73-22-3)
EPA Chemistry InfoL-Tryptophan (73-22-3)
Absorptioncut-off at 326nm in 0.5 M HCl at 0.5M


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