Specification Test Results

• Appearance:
  Red to dark red Crystalline powder or crystals
• Infrared spectrum:
  Conforms
• Loss on drying:
  ≤12 % (20 mg, 105°C, 2 hrs) (vacuum)
• UV spectrophotometry:
  ≥95 % (on dried substance)
• Ratio of Absorbances:
  3.15 to 3.45 (A361/A(547 to 559))