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METHYL RED (ACS) pdf-img printer-img

  • C.A.S. No.
  • 493-52-7
  • C.I. NO.
  • 13020
  • M.F.
  • C15H15N3O2
  • M. Wt.
  • 269.31 gm/mole

Specifications:

  • Dye content
  • > 95%
  • Solubility 0.1 % (95% Ethanol )
  • Clear solution
  • Transition range
  • pH 4.2-6.2 Pink-Yellow
  • Absorption maximum (pH 4.2) λ1max
  • 523-526nm
  • Absorption maximum (pH 6.2) λ2max
  • 430-434nm
  • Absorptivity maximum (A1%/1cm at pH4.2 at λ1max)
  • 1300-1400
  • Absorptivity maximum (A1%/1cm at pH6.2 at λ2max)
  • 700-800
  • Loss on drying (110oC)
  • <8%
  • Dye Content (by Spectrophotometry)
  • <3%
organic structure
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