L(-)-Methionin
L-METHIONINE cas 63-68-3
Product Name: L-Methionine
CAS: 63-68-3
MF: C5H11NO2S
MW: 149.21
EINECS: 200-562-9
Product Categories: Amino Acids;Amino Acid Derivatives;Methionine [Met, M];Amino Acids and Derivatives;Amino Acids;Chiral Compound;Miscellaneous Compounds;Amino Acids & Derivatives;Sulfur & Selenium Compounds;amino
Mol File: 63-68-3.mol
L-METHIONINE cas 63-68-3 specification;
Item | Specifications | Results |
Appearance | White crystal powder | White crystal powder |
Purity | 99.0%-100.5% | 99.75% |
Identification | Meets the requirements | Conforms |
Chloride(Cl) | ≤0.02% | <0.02% |
Specific rotation[α]D
20 |
+23.0°~+24.5° | +23.7° |
Sulfate(SO4) | ≤0.02% | <0.02% |
Iron(Fe) | ≤10ppm | <10ppm |
Ammonium(NH4) | ≤0.02% | <0.02% |
Heavy metals, as Pb | ≤10ppm | <10ppm |
Loss on drying | ≤0.20% |
0.11% |
Residue on ignition | ≤0.10% | 0.06% |
pH | 5.6~6.1 | 5.9 |
Other amino acids | Meets the requirements | Conforms |