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PHENOL RED (ACS) pdf-img printer-img

  • C.A.S. No.
  • 143-74-8
  • M.F.
  • C19H14O5S
  • M.W.
  • 354.38gm/mole

Specifications:

  • Dye Content
  • > 95%
  • Solubility 0.1% (95% EtOH)
  • Clear solution
  • Transition Range
  • pH 6.5 - 8.2 Yellow - Reddish Violet
  • Absorption Maximum (pH 6.5) λ1max
  • 430 - 435nm
  • Absorption maximum (pH 8.2) λ2max
  • 557 - 560nm
  • Absorptivity (A1%/1cm at pH 6.5 at λ1max)
  • 600 - 700
  • Absorptivity (A1%/1cm at pH 8.2 at λ2max)
  • 1100 - 1200
  • Loss on drying (105oC)
  • <1%
organic structure
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