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:
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Appearance: |
White crystalline powder |
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Assay: |
98.5% to 101.5% |
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Specific rotation [α]D20: |
- 29.40 to - 32.80 |
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Loss on drying |
0.30% max |
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PH: |
5.5 to 7.0 |
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Residue on ignition [sulfated]: |
0.10% max |
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Chloride [Cl-]: |
0.05% max |
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Sulfate [SO4]: |
0.03% max |
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Iron [Fe]: |
30ppm max |
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Heavy metals [Pb]: |
15ppm max |
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Arsenic [As2O3]: |
1ppm max |
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Chromatographic purity: |
Individual impurity not more than 0.5% Total impurities not more than 2.0% |
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