Product Specifications
| DL-Methionine | AJI92 | EP6 |
| Assay | 99.0-100.5% | 99.0-101.0% |
| PH | 5.6-6.1 | 5.4-6.1 |
| Specific rotation[a]D20 | / | / |
| Specific rotation[a]D25 | / | / |
| Transmittance(T430) | ≥98.0% | clear & colorless |
| Chloride(Cl) | ≤0.02% | ≤0.02% |
| Ammonium(NH4) | ≤0.02% | / |
| Sulfate(SO4) | ≤0.02% | ≤0.02% |
| Iron(Fe) | ≤10PPM | / |
| Heavy metals(Pb) | ≤10PPM | ≤20PPM |
| Arsenic | ≤1PPM | / |
| Other amino acids | conform | / |
| Ninhydrin-positive substances | / | / |
| Loss on drying | ≤0.30% | ≤0.50% |
| Residue on ignition | ≤0.10% | ≤0.10% |
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