0102030405
Hot Sale L-Tryptophan | C11H12N2O2 | CAS 73-22-3
Properties
Melting point: 289 - 290 °C (dec.)(lit.)
Alpha: -31.1 º (c = 1, H20)
Boiling point: 342.72°C
Density: 1.34
Bulk density: 400kg/m3
Refractive index: -32 ° (C = 1, H2O)
Storage temp.: 2 - 8°C
Solubility: 20% NH3: 0.1 g/mL at 20 °C, clear, colorless
Form: powder
Pka: 2.46(at 25℃)
Color: White to yellow - white
PH: 5.5 - 7.0 (10g/l, H2O, 20℃)
Odor: wh. cryst. or cryst. odorless powd., sl. bitter taste
Optical activity: [α]20/D 31.5±1°, c = 1% in H2O
Water Solubility: 11.4 g/L (25 ºC)
Specification
Test Items |
Testing Standards | |
| Appearance |
White to Almost white powder to crystal
|
|
| Purity(Nonaqueous Titration) | 98.5% min | |
| Melting Point | 282 °C | |
| Solubility in Water |
Slightly soluble
|
|
Products Usage
L-Tryptophan has been used as a nutritional supplement to study its effect on the circadian clock of primary cell lines. It has also been used as a test amino acid aerosol to study the variation in the fluorescence intensity of thermally-exposed bacterial bioaerosols.
Package And Storage
Package:
25kg/carton drum or as your requirements.
Remark: Chemical composition and size can be optimized by the customers' requirements
Storage:
The bulk material is hygroscopic and should be stored in an airtight container in a cool, dry place.
Safety Protection
Precautions for safe handling
NO open flames. Closed system, dust explosion-proof electrical equipment and lighting. Prevent deposition of dust. Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.