Specification Test Results

• Appearance:
  White to off-white Crystalline powder or crystals
• Infrared spectrum:
  Conforms
• Melting point:
  82 to 87 °C
• Additional info:
  7-dehydrocholesterol: ≤ 0.5%
• HPLC:
  ≥98.5 %
• Specific optical rotation:
  +105° to +112° (25 °C, 589 nm) (c=0.8, ethanol) (1 dm, within 30 min.)