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≥99%
外观Appearance                                                  White powder
红外光谱Infrared spectrum                                 Conforms to Structure
纯度Purity (GC)                                                   ≥99 %
纯度Purity（Titration by Sodium Hydroxide）    ≥98.5-101.5 %
溶解试验Solubility                                              Colorless to pale yellow,clear(100 mg/ml, CHCl3)

≥99.5%
外观Appearance                                                  White powder
红外光谱Infrared spectrum                                 Conforms to Structure
纯度Purity (GC)                                                  ≥99.5 %
纯度Purity（Titration by Sodium Hydroxide）    99.5-100.5 %