Purity(Titration by AgNO3) 97.5-102.5（%）
Purity(HPLC) 98-100（%）
Appearance White to Yellow to Light Brown Powder or Crystals
Infrared spectrum Conforms to Structure
Proton NMR spectrum Conforms to Structure
Solubility in EtOH，Colorless to Faint Yellow Clear(C = 5%) pass