L-Fucose 2438-80-4 L-fucopyranose
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Items | Specifications | Results | |
Appearance | White to off-white crystalline powder,soluble in water and ethanol | Conforms | |
Specific rotation | About -76° | -75° | |
Loss of drying | NMT 1.0% | 0.4% | |
Residue on ignition | NMT 0.3% | 0.1% | |
Water | NMT 0.5% | 0.4% | |
Melting point | 138.0-142.0℃ | 139.9℃ | |
Purity | NLT 98.0% | 99.8% | |
Conclusion | Qualified |
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