L-Methionine
L-Methionine
CAS NO：63-68-3
| Chemical Name | L-Methionine |
| Molecular Structure |  |
| Molecular Formula | C5H11NO2S |
| Molecular Weight | 149.21 |
| Characteristics | White crystalline powder |
| Packing | 25㎏/drum，25㎏/carton |
| Quality Standard | AJI92/USP28/EP5/FCCIV |
| Specification | |
| Specific rotation[a]D20° | +23.0°~+24.5° |
| State of solution | Clear and colorless |
| (Tranamittance) | ≥98.0% |
| Chloride(Cl) | ≤0.02% |
| Ammonium(NH4) | ≤0.02% |
| Sulfate(SO4) | ≤0.020% |
| Iron(Fe) | ≤10PPm |
| Heavy metals(Pb) | ≤10PPm |
| Arsenic(As2O3) | ≤1PPm |
| Other amio acids | Conforms |
| Loss on drying | ≤0.20% |
| Residue on ignition (Sulfated) | ≤0.10% |
| Assay | 99.0～100.5% |
| PH | 5.6～6.1 |
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L-Glutamic Acid Hydrochloride
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L-Phenylalanine
