Tryptophan (data page)

The complete data for Tryptophan
	General information Chemical formula: C11H12N2O2 Molar mass: 204.23 g·mol^−1 Systematic name: (S)-2-Amino-3-(1H-indol-3-yl)-propanoic acid Abbreviations: W, Trp Synonyms: none
Database data
SMILES: C(N)(C(=O)O)CC1c2ccccc2NC=1 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)/t9-/m1/s1/f/h14H 1/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)/f/h5H ATC: N/A CAS: 73-22-3 DrugBank: N/A EINECS: 200-795-6 ^a PubChem: 9060 (D)^a, 6305 (L)^a
Physical properties
Structure Crystal data Spectral data UV-Vis IR NMR MS - Masses of main fragments: GMD MS Spectrum Phase behavior Solid properties ρsolid: 1.34 g.cm^−3 Tm: 228 °C Liquid properties Gas properties
Hazard properties
MSDS N/A Main hazards: - N/A NFPA 704 Flash point - N/A R/S statement R: N/A S: N/A RTECS number: N/A
Chemical properties
XLogP: -1.3 pI: 5.89 pKa: 2.38, 9.34 Tautomers: Hydrogen bond: donor - 3;  acceptor - 4
Pharmacological properties
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)

References

1. ^a 73-22-3 EINECS for Tryptophan
2. ^a CID 9060 from PubChem
3. ^a CID 6305 from PubChem