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L-Serine

Product Name: L-Serine
Molecular Formula: C3H7NO3
Molecular Weight: 105.09 
CAS No: 56-45-1

Product Specifications


L-Serine USP36 AJI92 CP2015 ( Injection Grade ) EP8
Assay 98.5-101.5% 99.0-101.0% ≥98.5% 98.5-101.0%
PH / 5.2-6.2 5.5-6.5 /
Specific rotation[a]D20 / +14.4°-+15.5° +14.0°-+15.6° +14.0°-+16.0°
Specific rotation[a]D25 +14.0°-+15.6° / / /
Transmittance(T430) / ≥98.0% ≥98.0% clear & colorless ≤BY6
Chloride(Cl) ≤0.05% ≤0.02% ≤0.02% ≤0.02%
Ammonium(NH4) / ≤0.02% ≤0.02% ≤0.02%
Sulfate(SO4) ≤0.03% ≤0.02% ≤0.02% ≤0.03%
Iron(Fe) ≤30PPM ≤10PPM ≤10PPM ≤10PPM
Heavy metals(Pb) ≤15PPM ≤10PPM ≤10PPM ≤10PPM
Arsenic / ≤1PPM ≤1PPM /
Other amino acids individual impurities≤0.5% total impurities≤2.0% conform ≤0.50% individual impurities≤0.20% total impurities≤0.5%
Ninhydrin-positive substances / / / conform
Loss on drying ≤0.20% ≤0.20% ≤0.20% ≤0.50%
Residue on ignition ≤0.10% ≤0.10% ≤0.10% ≤0.10%
Organic volatile impurities / / / /
Endotoxin / / <12EU/g /


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