Synonyms
L-Beta-3-indolylalanine
IUPAC Name
(2S)-2-Amino-3-(1H-indol-3-yl)propanoic acid
Molecular Weight
204.23
Molecular Formula
C11H12N2O2
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
InChI Key
QIVBCDIJIAJPQS-VIFPVBQESA-N
Boiling Point
342.72 °C
Melting Point
289-290 °C(lit.)
Purity
99%
Density
1.34 g/cm³
Solubility
Slightly soluble in acetic acid, ethanol, insoluble in ethyl ether
Appearance
White to yellow-white powder
Storage
2-8 °C
Assay
0.99
Color Form
Leaflets or plates from dilute alcohol;White to slightly yellowish-white ... crystals or crystalline powder;
Complexity
245
Covalently-Bonded Unit Count
1
Decomposition
When heated to decomposition it emits toxic fumes of /nitric oxide/.;
Defined Atom Stereocenter Count
1
EC Number
200-795-6
Exact Mass
204.089877630
H-Bond Acceptor
3
H-Bond Donor
3
Heavy Atom Count
15
Isomeric SMILES
C1=CC=C2C(=C1)C(=CN2)C[C@@H](C(=O)O)N
MDL Number
MFCD00064340
Monoisotopic Mass
204.089877630
NSC Number
757373
Odor
Odorless;
Other Experimental
Decomposes at 289 deg C (rapid heating);Needles from methanol, decomposes at 251 deg C /Tryptophan hydrochloride/;IR: 8612 (Sadtler Research Laboratories IR Grating Collection) /Tryptophan (DL)/;UV: 3453 (Sadtler Research Laboratories Spectral Collection) /Tryptophan (DL)/;1H NMR: 582 (Sadtler Research Laboratories Spectral Collection) /Tryptophan (DL)/;MASS: 1229 (National Bureau of Standards EPA-NIH Mass Spectra Data Base, NSRDS-NBS-63) /Tryptophan (DL)/;1H NMR: 582 (Sadtler Research Laboratories Spectral Collection) /Tryptophan (D)/;MASS: 1229 (National Bureau of Standards EPA-NIH Mass Spectra Data Base, NSRDS-NBS-63) /Tryptophan (D)/;
Physical State
Solid
Refractive Index
-32 ° (C=1, H₂O)
Rotatable Bond Count
3
Topological Polar Surface Area
79.1 Ų
UNII
8DUH1N11BX
Vapor Pressure
2.1X10-9 mm Hg at 25 deg C (est);
