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Cresol Red

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Cresol Red Basic information
Cresol Red Chemical Properties
  • Melting point:290 °C
  • Boiling point:479.59°C (rough estimate)
  • Density 0.98 g/mL at 25 °C
  • refractive index 1.5300 (estimate)
  • storage temp. Store at RT.
  • solubility Solubility Sparingly soluble in water; soluble in ethanol
  • form Powder
  • pka1.0(at 25℃)
  • color Dark green or brown-red
  • PH Range7.2(YELLOW)--8.8(PURPLISH RED)
  • PH7.2~8.8
  • Water Solubility soluble
  • λmax570nm, 367nm, 432nm
  • Merck 14,2578
  • BRN 343399
  • Major ApplicationDisplay device, optical sensors, combustion gas detection system, inks, correction fluid, diapers, toothpaste, identifying fresh and stale rice, food storage, determine glucose in dialysis solution, monitor metabolic activity of microorganisms, detect bacterialinfection, psychoactive drugs, dental impression material
  • InChIKeyASMGMVUGPNODGX-UHFFFAOYSA-N
  • EPA Substance Registry SystemPhenol, 4,4'-(1,1-dioxido-3H- 2,1-benzoxathiol-3-ylidene) bis[2-methyl-(1733-12-6)
Safety Information
MSDS
Cresol Red Usage And Synthesis
  • Chemical PropertiesDark green or brown-red powder
  • UsesAcid-base indicator.
  • DefinitionChEBI: A member of the class of 2,1-benzoxathioles that is 2,1-benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 4-hydroxy-5-methylphenyl groups.
  • Purification MethodsCrystallise it from glacial acetic acid. Dry it in air. Dissolve it in aqueous 5% NaHCO3 solution and precipitate it from a hot solution by dropwise addition of aqueous HCl. Repeat the procedure till the UVmax does not increase. [Beilstein 19 IV 1133.]
Cresol Red Preparation Products And Raw materials
Cresol Red(1733-12-6)Related Product Information
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