L-Tryptophan

Tryptophan is an aromatic amino acid that was discovered by Frederick Hopkins in 1901 when it was isolated from a pancreatic digest of casein. From 600 grams of crude casein one obtains 4-8 grams of tryptophan.

IUPAC Name: (2S)-2-Amino-3-(1H-indol-3-yl)propanoic acid
Symbol: Trp or W
Molecular Weight: 204.22518 g/mol
Molecular Formula: C11H12N2O2
Canonical SMILES: C1=CC=C2C(=C1)C(=CN2)CC(C(=O)O)N
Isomeric SMILES: C1=CC=C2C(=C1)C(=CN2)C[C@@H](C(=O)O)N
InChIKey Identifier: QIVBCDIJIAJPQS-FKOBDKTLDJ
CAS Number: 73-22-3
MDL Number: MFCD00064340
Melting point: 280-285 °C
Solubility in water: 11,4 g/L (20 °C)
2D Molfile: Get the molfile
3D PDB file: Get the PDB file
Other names: TRP; 2-Amino-3-(1H-indol-3-yl)propanoic acid; (S)-2-Amino-3-(3-indolyl)propionic acid; L- alpha-Amino-3-indolepropionic acid; alpha'-Amino-3-indolepropionic acid; Indole-3-alanine; Indole-3-propionic acid, alpha-amino-; 1-beta-3-Indolylalanine; Propionic acid, 2-amino-3-indol-3-yl-

Load 3D Structure of Tryptophan

L-Tryptophan is the essential building block for many life-giving biomolecules, including structural proteins, enzymes and the neurotransmitters, serotonin and melatonin.

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