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 |