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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

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Reference substances

Reference substances

Currently viewing:
IUPAC name:
L-tryptophan

Inventory

EC number:
200-795-6
EC name:
L-tryptophan
CAS number:
73-22-3
CAS number:
73-22-3
Synonyms
Names:
(-)-Tryptophan
(2S)-2-Amino-3-(1H-indol-3-yl)propanoic acid
(S)-2-Amino-3-(1H-indol-3-yl)propanoic acid
(S)-Tryptophan
(S)-α-Amino-1H-indole-3-propanoic acid
(S)-α-Amino-β-indolepropionic acid
(S)-α-Aminoindole-3-propionic acid
1H-Indole-3-alanine, (S)-
1H-Indole-3-propanoic acid, α-amino-, (S)-
2-Amino-3-indolylpropanoic acid
3-Indol-3-ylalanine
L-(-)-Tryptophan
L-Alanine, 3-(1H-indol-3-yl)-
L-Trp
L-Tryptophan
L-Tryptophane
L-α-Aminoindole-3-propionic acid
Triptophan
Trp
Tryptophane
l-β-3-Indolylalanine
Identifier:
IUPAC name
L-Tryptophan
L-tryptophan

Molecular and structural information

Molecular formula:
C11H12N2O2
Molecular weight:
204.23
SMILES notation:
N[C@@H](Cc1c[nH]c2ccccc12)C(=O)O
InChl:
InChI=1/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)
Structural formula:
Chemical structure

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