L-Tryptophan
Tryptophan (abbreviated as Trp or W; encoded by the codon UGG) is an ɑ-amino acid that is used in the biosynthesis of proteins. It contains an α-amino group (which is in the protonated –+NH3 form under biological conditions), an α-carboxylic acid group (which is in the deprotonated –COO- form under biological conditions), and a side chain indole, classifying it as a non-polar, aromatic amino acid. It is essential in humans, meaning the body cannot synthesize it and thus it must be obtained from the diet.
Starting at $34.30
Product Description
| IUPAC name
Tryptophan or (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
|
|
| Other names
2-Amino-3-(1H-indol-3-yl)propanoic acid
|
|
CAS Number
|
73-22-3 |
| ChEBI | CHEBI:27897 |
| ChEMBL | ChEMBL54976 |
| ChemSpider | 6066 |
| DrugBank | DB00150 |
|
IUPHAR/BPS
|
717 |
| Jmol interactive 3D | Image |
| KEGG | D00020 |
| PubChem | 6305 |
| UNII | 8DUH1N11BX |
|
InChI[show]
|
|
|
SMILES[show]
|
|
|
Chemical formula
|
C11H12N2O2 |
| Molar mass | 204.23 g·mol−1 |
|
Solubility in water
|
Soluble: 0.23 g/L at 0 °C,
11.4 g/L at 25 °C, |
| Solubility | Soluble in hot alcohol, alkali hydroxides; insoluble in chloroform. |
| Acidity (pKa) | 2.38 (carboxyl), 9.39 (amino)[1] |
| ATC code | N06AX02 |
|
Structure and
properties |
Refractive index (n), Dielectric constant (εr), etc. |
|
Thermodynamic
data |
Phase behaviour solid–liquid–gas |
|
Spectral data
|
UV, IR, NMR, MS |
