L-苏氨酸

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L-苏氨酸

   CAS NO:72-19-5

Chemical NameL-苏氨酸
Molecular Structuree15b404ed698fa1a0a4eaa335ce13be2.jpg
Molecular FormulaC4H9NO3
Molecular Weight119.12
CharacteristicsWhite crystalling powder
Packing25㎏/drum,25㎏/carton
Quality  StandardAJI92/USP28/EP5/FCCIV
Specification
Specific Rotation [a]D20o-27.6°~-29.0°
State of solutionClear and colorless
(Tranamittance)

≥98.0%

Chloride(Cl)≤0.02%
Ammonium(NH4)≤0.02% 
Sulfate(SO4)≤0.020%
Iron (Fe)≤10PPM
Heavy metals(Pb)≤10PPm 
Arsenic (AS2O3)≤1PPM
Other amio acidsChromatographically not detecatable
Loss on drying≤0.10%
Residue on ignition (Sulfated) ≤0.10%
Assay99.0~100.5%
PH5.2~6.2