L-methionine, also known as methionine, is one of the essential amino acids.
CAS No. :
63-68-3EINECS :
200-562-9Package :
25KG/DRUMBrand :
TOPINCHEM®Origin :
CHINAFormula :
C5H11NO2SMinimum Order :
200KGItem :
L-MethionineFactory Supply L-Methionine USP Grade CAS 63-68-3
Description
L-methionine is a white thin crystalline or crystalline powder with a unique odor.
Specification
Item | Specifications | Test Results |
Appearance | White crystals or crystalline powder | Conforms |
Assay | 98.5%~ 101.5% | 99.50% |
Specific optical rotation | +22.4 °~ +24.7 ° | +23.2 ° |
pH value | 5.6~6. 1 | 5.63 |
Loss on drying | ≤0.3% | 0.17% |
Heavy metals (Pb) | ≤0.0015% | <0.0015% |
Residue on ignition | ≤0.4% | 0.05% |
Chloride (CL) | ≤0.05% | <0.02% |
Sulphate(SO4) | ≤0.03% | <0.02% |
Iron (Fe) | ≤0.003% | <0.003% |
Arsenic (mg/kg) | ≤ 1.0 | <1.0 |
Lead(Pb) (mg/kg) | ≤ 3 .0 | <3.0 |
Cadmium(Cd) (mg/kg) | ≤ 1.0 | <1.0 |
Mercury(Hg) (mg/kg) | ≤ 0. 1 | <0.1 |
Total Plate Count | ≤ 2000cfu/g | <2000cfu/g |
Conclusion:The above specifications meet the requirements of GB29938-2020/USP36. |
Application
L-methionine is used as an amino acid drug and nutritional supplement. Used for liver cirrhosis and fatty liver. In addition, it is widely used as a feed additive to improve feed quality, increase the utilization rate of natural protein, and promote animal development.