L-Tryptophan, 99%
L-Tryptophan, 99%
L-Tryptophan, 99%
Thermo Scientific Chemicals

L-Tryptophan, 99%

CAS: 73-22-3 | C11H12N2O2 | 204.23 g/mol
Quantity:
25 g
100 g
500 g
Catalog number A10230.36
also known as A10230-36
Price (JPY)
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Quantity:
500 g
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Chemical Identifiers
CAS73-22-3
IUPAC Name(2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
Molecular FormulaC11H12N2O2
InChI KeyQIVBCDIJIAJPQS-VIFPVBQESA-N
SMILESN[C@@H](CC1=CNC2=CC=CC=C12)C(O)=O
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SpecificationsSpecification SheetSpecification Sheet
Appearance (Color)White to pale cream
FormCrystals or powder or crystalline powder
Assay (Non-aqueous acid-base Titration)≥98.5% to ≤101.5% (non-U.S. specification)
Assay from Suppliers CofA≥98.5% (U.S. specification)
CommentSpecification differs for U.S. and non-U.S. material where indicated
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L-tryptophan is an essential amino acid which is necessary for normal growth in infants and for nitrogen balance in adults. It acts as a natural dietary supplement and used as an antidepressant, anxiolytic and sleep aid. It is used as a precursor to niacin, indole alkaloids and serotonin. It acts as an important intrinsic fluorescent probe, which finds to estimate the nature of microenvironment of the tryptophan.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
L-tryptophan is an essential amino acid which is necessary for normal growth in infants and for nitrogen balance in adults. It acts as a natural dietary supplement and used as an antidepressant, anxiolytic and sleep aid. It is used as a precursor to niacin, indole alkaloids and serotonin. It acts as an important intrinsic fluorescent probe, which finds to estimate the nature of microenvironment of the tryptophan.

Solubility
Soluble in water, ammonia, hot alcohol, alkali hydroxides and dilute acids. Slightly soluble in acetic acid and ethanol. Insoluble in chloroform and ethyl ether.

Notes
Incompatible with strong acids and strong oxidizing agents.
RUO – Research Use Only

General References:

  1. Bischoff, L.; Berninghausen, O.; Beckmann, R. Molecular basis for the ribosome functioning as an L-tryptophan sensor. Cell Rep. 2014, 9 (2), 469-475.
  2. Steinert, R. E.; Marsh, N. D. L.; Little, T. J.; Standfield, S.; Otto, B.; Horowitz, M.; Bisset, C. F. Effects of intraduodenal infusion of L-tryptophan on ad libitum eating, antropyloroduodenal motility, glycemia, insulinemia, and gut peptide secretion in healthy men. J. Clin. Endocrinol. Metab. 2014, 99 (9), 3275-3284.