Specification Test Results

• Appearance (colour):
  Green to very dark green and brown to very dark brown
• Appearance (form):
  Powder
• Thin layer chromatogr.:
  Corresponds to standard
• Solubility (colour):
  0.01 g in 10 ml water
• Solubility (method):
  0.01 g in 10 ml water
• Carbon content:
  66.64% (theory)
• Hydrogen content:
  6.11% (theory)
• Nitrogen content:
  3.61% (theory)
• Infrared spectrum:
  Conforms to structure
• Wavelength (1) (UV):
  774 - 784 nm
• Extinction (1%/1 cm) (1) (UV):
  ≥2000
• Wavelength (2) (UV):
  712 - 722 nm
• Extinction (1%/1 cm) (2) (UV):
  ≥900
• Wavelength (3) (UV):
  386 - 396 nm
• Extinction (1%/1 cm) (3) (UV):
  ≥115
• Solvent (UV):
  Water
• Emission maximum:
  801 - 811 nm
• Remarks on luminescence:
  Exc.: 781 nm in pbs