Specification Test Results

• Appearance:
  White to light yellow Powder
• Infrared spectrum:
  Conforms
• Water:
  ≤6.0 % (K.F.)
• Heavy metals:
  ≤20 ppm
• Sulfated ash:
  ≤0.2 %
• Related substances:
  ≤10.0 % 18-alpha-glycyrrhizic acid (HPLC)
• Specific optical rotation:
  +49.0° to +54.0° (20°C, 589 nm) (c=1, EtOH 50% v/v) (on anhydrous substance)
• Titration with HClO4:
  98.0 to 102.0 % (on anhydrous substance)