Purity (HPLC) ≥98% Appearance White to off white powder Melting Point 192-212℃(dec.) Specific Rotation (20/D) +20.0 ~ +23.0 °(C=2, Methanol) 300 MHz NMR Spectrum 1H Consistent Clarity of solution 2 gram in 5ml H2O clear solution Mass spectrum In accordance with the standard