Specification Test Results

• Appearance (Color) :
  Dark Blue to Very Dark Blue and Dark Purple to Very Dark Purple and Black
• Appearance (Form) :
  Powder or Crystals or Powder with Chunk(s) or Crystals with Chunk(s)
• Infrared spectrum :
  Conforms to Structure
• Wavelength :
  597 - 603 nm
• Extinction Coefficient :
  ≥ 15000
• Extinction Coefficient ( c = 0.01g/l in H2O):
  ≥ 17000
• Purity (HPLC):
  ≥ 60 %
• Carbon Typically :
  19.5% - 26.0%
• Nitrogen Typically :
  2.5% - 4.0%
• Solubility (Color) c = 0.1%; Water:
  Dark Blue to Very Dark Blue