Specification Test Results

• Appearance (colour):
  Light yellow to yellow and light orange to orange
• Appearance (form):
  Powder
• Thin layer chromatogr.:
  Corresponds to standard
• Solubility (colour):
  Yellow to very dark yellow and orange to very dark orange
• Solubility (turbidity):
  --
• Solubility (method):
  0.5 g in 10 ml methanol/water 1:1
• Wavelength (1) (UV):
  423 - 433 nm
• Extinction (1%/1 cm) (1) (UV):
  ≥275
• Wavelength (2) (UV):
  387 - 397 nm
• Extinction (1%/1 cm) (2) (UV):
  ≥250
• Solvent (UV):
  Water