Specification Test Results

• Appearance:
  White to yellow Powder
• Infrared spectrum:
  Conforms
• Assay:
  ≥590 µg/mg (On dried basis)
• Loss on drying:
  ≤18.0 % (Vacuum, 110°C, 3h)
• Sulfated ash:
  ≤1.0 %
• pH:
  3.5 to 5.5 (c=4, water)
• Specific optical rotation:
  +107° to +121° (20°C, 589 nm) (c=1, water)