L-Tryptophan 99% For Biochemistry
Used as a substrate in determination of tryptophanase.
(S)-2-Amino-3-(3-indolyl)propionic acid; L-a-Amino-3-indolepropionic acid
Product Code. |
02793 |
Grade |
For Biochemistry |
Purity |
99% |
CAS No. |
73-22-3 |
Molecular Formula |
C11H12N2O2 |
Molecular Weight |
204.23 |
H.S.Code |
2933.99000 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White crystalline |
Odour |
Odorless |
| pH value |
5.5 - 7.0 |
Melting point/ Freezing point [°C] |
280 - 285 °C |
Solubility in water [% weight] |
Partially soluble in water |
Packaging
Specification
| Appearance | White crystalline powder |
| Assay (by HClO4 titration) | Min 99% |
| Heavy metal (as Pb) | Max 0.001% |
| Ammonium (NH4) | Max 0.01% |
| Foreign amino acids | Max 0.3% |
| Other ninhydrin positive substances (as glycine) | Max 0.1% |
Safety Information and Hazard Symbols