Appearance White powder Puity ≥99%（HPLC) Optical Puity ≤0.5% D-enantiomer Melting point 120-135 ℃ Specific rotation [a]20/D -28°±2°(C=1 in DMF) Claarity of solution 0.3 gram in 2mL DMF clear solution assayWater content(K.F) ≤1.0% IR In accordance with the standard Mass Spectrum In accordance with the standard NMR Spectrum In accordance with the standard Kaiser Test <0.05%
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