Appearance:?White or off-white crystalline powderPurity:≥99.7% (HPLC, Chiral purity)≥98% (TLC)Infrared Spectrum:Conforms to structureAnalysis by Mass Spectra:Conforms to structure1H NMR:Conforms to structureD-Enantiomer:≤0.3%Chiral Purity:≥99.7% (ee)Melting Point:?100-118°COptical Rotation:?[a]D20 = -32 ± 2o (C=1 in DMF)Solubility:Clear solution (0.3g in 2ml DMF)Water (Karl Fisher):≤5%Kaiser Test:≤0.5%Storage Temp:?Store at 0-8°C