CAS NO:59-51-8
| Chemical Name | DL-Methionine |
| Molecular Structure | ![]() |
| Molecular Formula | C5H11NO2S |
| Molecular Weight | 149.21 |
| Characteristics | White crystalling powder |
| Packing | 25㎏/drum,25㎏/carton |
| Quality Standard | AJI92/USP28/EP5/FCCIV |
| Specification | |
| State of solution | ≥98.0% |
| Chloride(CI) | ≤0.020% |
| Ammonium(NH4) | ≤0.02% |
| Sulfate(SO4) | |
| Heavy metals(Pb) | ≤10PPm |
| Iron(Fe) | ≤10PPm |
| Arsenic(As2O3) | ≤1PPm |
| Other amino acids | Chromatographically not detectable |
| Residue on ignition | ≤0.10% |
| Loss on drying | ≤0.30% |
| Assay | 99.0~100.5% |
| PH | 5.6~6.1 |