Product name：L-Serine
Batch No. Production date:
Report date： Shelf life:2years
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Description： White crystals or crystalline Powder.
Identification： Conform (IR)
Specifications
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Item Limit Result
Assay 99.0～101.0% 99.8%
pH 5.2～6.2 5.7
Specific rotation [a]D20 +14.4°～+15.5° +15.1°
State of solution clear & colorless clear & colorless
(Transmittance T430) ≥98.0% 99.6%
Chloride(Cl) ≤0.020% <0.020%
Ammonium(NH4) ≤0.02% <0.02%
Sulfate(SO4) ≤0.020% <0.020%
Iron(Fe) ≤10ppm <10ppm
Heavy metals(Pb) ≤10ppm <10ppm
Arsenic(As2O3) ≤1ppm <1ppm
Other amino acids ≤0.5% Conforms
Loss on drying ≤0.20% 0.12%
Residue on ignition ≤0.10% 0.04%
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供求商机详细资料 发布时间:2008-2-15 11:59:30 
