L-ThreonineCAS NO:72-19-5Chemical NameL-ThreonineMolecular Structure
Molecular FormulaC4H9NO3Molecular Weight119.12CharacteristicsWhite crystalling powderPacking25㎏/drum,25㎏/cartonQuality StandardAJI92/USP28/EP5/FCCIV
Specification
Specific rotation[a]D20°
-27.6°~-29.0°
State of solution
Clear 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 acids
Chromatographically not detecatable
Loss on drying
≤0.10%
Residue on ignition (Sulfated)
≤0.10%
Assay
99.0~100.5%
PH
5.2~6.2
Fmoc-Orn(ivdde)-OH
L-lsoleucine
L-Alanine
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