Specification Test Results

• Appearance (Colour):
  White to Light Yellow
• Appearance (Form):
  Powder
• Solubility (Colour):
  Light Yellow to Dark Yellow and Light Orange to Dark Orange
• Solubility (Turbidity)
  50 mg/mL, 1 M NaOH:
  Clear to Slightly Hazy
• Carbon:
  54.5 - 56.5 %
• Nitrogen:
  4.0 - 4.6 %
• Suitability
  for use as an indicator for EDTA titrations:
  Suitable
• 1H NMR Spectrum:
  Conforms to Structure