Appearance White to off white powder Purity(HPLC) ≥98.0 % Melting Point 145-160℃ Optical Rotation[a]20/D -30.5 to -33.5 °(C=1 in MeOH) Free Amino Acid <0.1% Free Enantiomer ≤0.4% Loss on Drying <0.2% TLC System (TLC Concentration 25mg/ml) One Spot
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