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DL-Methionine

Product Name: DL-Methionine
Molecular Formula: C5H11NO2S 
Molecular Weight: 149.21
CAS No: 59-51-8

Product Specifications


DL-Methionine AJI92 EP6
Assay 99.0-100.5% 99.0-101.0%
PH 5.6-6.1 5.4-6.1
Specific rotation[a]D20 / /
Specific rotation[a]D25 / /
Transmittance(T430) ≥98.0% clear & colorless
Chloride(Cl) ≤0.02% ≤0.02%
Ammonium(NH4) ≤0.02% /
Sulfate(SO4) ≤0.02% ≤0.02%
Iron(Fe) ≤10PPM /
Heavy metals(Pb) ≤10PPM ≤20PPM
Arsenic ≤1PPM /
Other amino acids conform /
Ninhydrin-positive substances / /
Loss on drying ≤0.30% ≤0.50%
Residue on ignition ≤0.10% ≤0.10%


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