(±)-Tryptophan

C11H12N2O2CAS 54-12-6204.23 g/mol

H2NNHOOH
Carboxylic acidPrimary amine

Properties

Molecular formula
C11H12N2O2
Molar mass
204.23 g/mol
Exact mass
204.0899 Da
Melting point
230 °C (decomposes)
pKa
2.3, 9.3
logP
1.12Crippen estimate
Polar surface area
79.1 Ų
H-bond donors / acceptors
3 / 2
Rotatable bonds
3

Hazards

Warning
Irritant (GHS07)

Aggregated from 9 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.

Precautionary statements

P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, P501

Identifiers

CAS number
54-12-6
SMILES
NC(Cc1c[nH]c2ccccc12)C(=O)O
InChIKey
QIVBCDIJIAJPQS-UHFFFAOYSA-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)

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Type any one amount. The others follow from the molar mass.

Names and synonyms

9 names
  • Tryptophan
  • Tryptophan, DL-
  • DL-Tryptophan
  • DL-α-Amino-3-indolepropionic acid
  • (RS)-Tryptophan
  • 1H-Indole-3-alanine
  • NSC 13118
  • 2-Amino-3-(1H-indol-3-yl)propanoic acid
  • 2-Amino-3-(1H-indol-3-yl)-propionic acid

Work with (±)-Tryptophan

Stereoisomers, salts and isotopologues

The same compound in another form: other stereochemistry, a salt or hydrate, the free acid or base, or an isotope-labelled version.

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Same formula

Elsewhere