M-Clarity™ (Niveau de qualité) = MQ200
P3532-5GEA
36
EUR
InStock
P3532-5G
P3532-25G
Rouge de phénol, en poudre, Bioréactif réactif de culture cellulaire, Sigma-Aldrich®
Rouge de phénol
Phenol Red is a phenolsulfonphthalein compound. It is present as a sulfonated hydroxyquinone in weakly acidic aqueous solutions. In alkaline solutions, the dye forms a hydrophilic dianion (a small, red anion and has a larger conjugated system than the yellow hydroxyquinone).
Phenol red is commonly used as a pH indicator in biology and medicine. It is incorporated into microbiological culture media for the identification of Escherichia coli strains. Its clinical diagnostic applications include investigation of gastric and duodenal ulcers and in the assessment of tear function in ophthalmology. Phenol red is also used as a tracer to assess the permeability of the ileal mucosal membrane and to assess bacterial leakage through root-filling materials in dentistry. Suitable for use as a pH indicator.