Specification Test Results

• Appearance:
  Light pink to brown to purple Crystalline powder
• Infrared spectrum:
  Conforms
• Visual transition interval:
  from pH 6.0 (yellow) to pH 7.6 (blue)
• Clarity of solution:
  Passes test
• Specific optical rotation:
  +103° to +108° (20°C, 589 nm) (c=5, H2O)