Congo Red Indicator For Microscopy

  • CAS :
    573-58-0
  • REF :
    24932
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QUANTITY PRICE ENQUIRY
25 gm Rs 170.00
100 gm Rs 480.00
500 gm Rs 2040.00

Product Information

  • Formula: C₃₂H₂₂N₆Na₂O₆S₂
  • CAS: 573-58-0
  • EC No.: 209-358-4
  • M (Molar Mass): 696.66 g/mol
  • λmax: 497 nm (pH 7), 540 nm (pH 3)
  • Solubility: Soluble in water, ethanol; insoluble in ether

Chemicals Properties

  • Dye Content: ≥ 85%
  • Appearance: Dark red to brownish-red powder
  • pH Transition Range: 3.0 (blue) to 5.2 (red)
  • Absorbance (1% solution): E₁%₁cm ≥ 600 at 497 nm
  • Loss on Drying: ≤ 5.0%
  • Sulfated Ash: ≤ 15%
  • Heavy Metals (as Pb): ≤ 20 ppm
  • Solubility in Water: Complete, clear solution
  • Staining Test: Satisfactory for amyloid staining

Hazard Information

  • Hazard: May be harmful if swallowed or inhaled. Causes eye irritation.
  • Safety: Avoid breathing dust. Use with adequate ventilation.
  • Storage: Store in tightly closed container at room temperature. Protect from light.