Cresol Red Indicator AR

  • CAS :
    1733-12-6
  • REF :
    24978
image
QUANTITY PRICE ENQUIRY
5 gm Rs 190.00
25 gm Rs 760.00

Product Information

  • Formula: C₂₁H₁₈O₅S
  • CAS: 1733-12-6
  • EC No.: 217-076-3
  • M (Molar Mass): 382.43 g/mol
  • pH Transition Range: 7.2 (yellow) to 8.8 (red)
  • λmax: 435 nm (acidic), 572 nm (basic)

Chemicals Properties

  • Dye Content: ≥ 85%
  • Appearance: Dark green to brown powder
  • pH Transition: Clear change from yellow to red
  • Loss on Drying: ≤ 1.0%
  • Sulfated Ash: ≤ 0.5%
  • Solubility: Soluble in ethanol, methanol; slightly soluble in water
  • Indicator Performance: Satisfactory for pH determination
  • Heavy Metals (as Pb): ≤ 20 ppm
  • Absorbance (0.1% in ethanol): E₁%₁cm ≥ 250 at 572 nm

Hazard Information

  • Hazard: May cause eye and skin irritation.
  • Safety: Handle with normal laboratory precautions.
  • Storage: Store in tightly closed container in cool, dry place.