L-Threonine

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L-Threonine

Product Name: L-Threonine
Molecular Formula: C4H9NO3 
Molecular Weight: 119.12 
CAS No: 72-19-5







Product Specifications


L-Threonine AJI92 CP2015 ( Injection Grade ) EP8 USP36
Assay 99.0-100.5% ≥98.5% 99.0-101.0% 98.5-101.5%
PH 5.2-6.2 5.0-6.5 5.0-6.5 5.0-6.5
Specific rotation[a]D20 -27.6°--29.0° -26.0°--29.0° -27.6°--29.0° /
Specific rotation[a]D25 / / / -26.7°--29.1°
Transmittance(T430) ≥98.0% ≥98.0% clear & colorless /
Chloride(Cl) ≤0.02% ≤0.02% ≤0.02% ≤0.05%
Ammonium(NH4) ≤0.02% ≤0.02% ≤0.02% /
Sulfate(SO4) ≤0.02% ≤0.02% ≤0.03% ≤0.03%
Iron(Fe) ≤10PPM ≤10PPM ≤10PPM ≤30PPM
Heavy metals(Pb) ≤10PPM ≤10PPM ≤10PPM ≤15PPM
Arsenic ≤1PPM ≤1PPM / /
Other amino acids conform ≤0.50% individual impurities≤0.20% total impurities≤0.5% individual impurities≤0.5% total impurities≤2.0%
Ninhydrin-positive substances / / conform /
Loss on drying ≤0.20% ≤0.20% ≤0.50% ≤0.20%
Residue on ignition ≤0.10% ≤0.10% ≤0.10% ≤0.4%
Organic volatile impurities / / / /
Endotoxin / <12EU/g / /


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