L-Tryptophan
L-Tryptophan is an organic compound with the molecular formula C11H12N2O2.
- Formula
- C11H12N2O2
- Functional group
- Amino acids
- Molar mass
- 204.22 g/mol
- Also known as
- (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid, tryptophan, L-Tryptophane, Tryptophane, (S)-Tryptophan, trofan, tryptacin
Overview
L-Tryptophan is an organic compound with the molecular formula C11H12N2O2.
Identifiers
- Formula
- C11H12N2O2
- Functional group
- Amino acids
- Molar mass
- 204.22 g/mol
- Also known as
- (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid, tryptophan, L-Tryptophane, Tryptophane, (S)-Tryptophan, trofan, tryptacin
Chemical identifiers
- SMILES
- C1=CC=C2C(=C1)C(=CN2)C[C@@H](C(=O)O)N
- InChI
- InChI=1S/C11H12N2O2/c12-9(11(14)15)5-7-6-13-10-4-2-1-3-8(7)10/h1-4,6,9,13H,5,12H2,(H,14,15)/t9-/m0/s1
- PubChem CID
- 6305
Properties
- Melting / decomposition
- 282 °C (decomposes)
- Water solubility
- Solubility in water: 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, 49.9 g/L at 100 °C
Data availability
Not published: Boiling Point, Density.
Related compounds
- Amino acids
L-Tryptophan is an organic compound with the molecular formula C11H12N2O2.
References
- PubChem Compound Summary: L-Tryptophan (CID 6305)National Center for Biotechnology Information · PubChem
Identity, molecular formula, molecular weight and aliases retrieved via PUG REST on 2026-09-08.
- Hazardous Substances Data Bank (HSDB): L-Tryptophan — melting pointHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6305#section=Melting-Point. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: Lide, D.R. CRC Handbook of Chemistry and Physics 88TH Edition 2007-2008. CRC Press, Taylor & Francis, Boca Raton, FL 2007, p. 3-514
- Hazardous Substances Data Bank (HSDB): L-Tryptophan — solubilityHazardous Substances Data Bank (HSDB)
Retrieved through PubChem PUG View on 2026-09-08. https://pubchem.ncbi.nlm.nih.gov/compound/6305#section=Solubility. Source value, complete property clause or compact miscibility statement retained; absent pressure, temperature or phase conditions are not inferred. Original reference: O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 1682