Description
Product Name: L-Tryptophane
CAS No.: 73-22-3
EINECS No.: 200-795-6
Chemical Formula: C11H12N2O2
Molecular Weight: 204.228
Other names:
2-Amino-3-(1H-indol-3-yl)propanoic acid;
Tryptophan or (2S)-2-amino-3-(1H-indol-3-yl)propanoic acid
Melting Point: 283ºC
Specification:
Appearance: |
White crystalline powder |
|
Assay: |
98.5% to 101.5% |
|
Specific rotation [α]D20: |
- 29.40 to - 32.80 |
|
Loss on drying |
0.30% max |
|
PH: |
5.5 to 7.0 |
|
Residue on ignition [sulfated]: |
0.10% max |
|
Chloride [Cl-]: |
0.05% max |
|
Sulfate [SO4]: |
0.03% max |
|
Iron [Fe]: |
30ppm max |
|
Heavy metals [Pb]: |
15ppm max |
|
Arsenic [As2O3]: |
1ppm max |
|
Chromatographic purity: |
Individual impurity not more than 0.5% Total impurities not more than 2.0% |