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.
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