CAS number: 59-51-8
Molecular formula: C5H11NO2S
molecular weight: 149.21
Chemical structure:
Product Name: | DL-Methionine | |
Shelf life | 2 years | |
Appearance | White crystalline powder | White crystalline powder |
(C5H11NO2S) ,% % (on dried basis) | 99.0~101.0 | 99.5 |
Clear and colorless | Clear, colorless | Clear, colorless |
pH value (2% w/v solution) | 5.4~6.1 | 5.62 |
Heavy metals (as Pb),% | ≤0.001 | <0.001 |
Sulfate (SO4-2) ,% | ≤0.02 | <0.02 |
Chloride(as Cl),% | ≤0.02 | <0.02 |
Loss on drying,% (100~105℃) | ≤0.5 | 0.21 |
Residue on ignition (as sulphate ash) ,% | ≤0.1 | 0.04 |
Conclusion:This product conforms to requirements of EP5standard. |