Specification Test Results

• Appearance (colour):
  Blue to very dark blue and purple to very dark purple
• Appearance (form):
  Powder
• Thin layer chromatogr.:
  Corresponds to standard
• Solubility (colour):
  Blue to very dark blue
• Solubility (turbidity):
  Report result
• Solubility (method):
  0.01 g in 10 ml toluene
• Carbon content:
  74.51% (theory)
• Hydrogen content:
  6.88% (theory)
• Nitrogen content:
  8.69% (theory)
• Wavelength (1) (UV):
  635 - 645 nm
• Extinction (1%/1 cm) (1) (UV):
  ≥550
• Wavelength (2) (UV):
  587 - 597 nm
• Extinction (1%/1 cm) (2) (UV):
  ≥400
• Solvent (uv):
  Ethanol