Chemical Properties
| Melting point | 238.4-240.2 °C |
| Boiling point | 340.95°C (rough estimate) |
| Density | 1.1536 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| pka | 16.02±0.40(Predicted) |
| IARC | 2B (Vol. 31, Sup 7) 1987 |
| EPA Substance Registry System | Tryptophan-P-1 (62450-06-0) |