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Product Specifications
| L-Theanine | FACTORY STANDARD |
| Assay | 98.0～102.0% |
| PH | 5.0～6.0 |
| Specific rotation[ɑ]D20 | +7.7°～+8.5° |
| Solubility | clear colorless |
| Chloride(Cl) | ≤0.02% |
| Identification by IR | Authentic |
| Melting point | 202.0-215.0℃ |
| Heavy metals(Pb) | ≤10ppm |
| Arsenic(As) | ≤1ppm |
| Loss on drying | ≤0.5% |
| Residue on ignition | ≤0.2% |
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