DY0650
73-22-3
200-795-6
C11H12N2O2
L-tryptophan
Index Name | Specifications |
Appearance | White to yellowish crystal powder Slightly soluble in alcohol |
Assay | 98.5 to 101.5% |
Optical rotation | -29.4 to -32.8degree |
pH | 5.5 to 7.0 |
Loss on drying | 0.3% max |
Residue on ignition | 0.3%max |
Chloride | 0.05%max |
Sulphate | 0.03%max |
Iron | 0.003%max |
Heavy metal | 0.0015%max |
Index Name | Specifications |
Appearance | White to yellowish crystal powder Slightly soluble in alcohol |
Assay | 98.5 to 101.5% |
Optical rotation | -29.4 to -32.8degree |
pH | 5.5 to 7.0 |
Loss on drying | 0.3% max |
Residue on ignition | 0.3%max |
Chloride | 0.05%max |
Sulphate | 0.03%max |
Iron | 0.003%max |
Heavy metal | 0.0015%max |
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