Phenol red (also known as phenolsulfonphthalein or PSP) is a pH indicator frequently used in cell biology laboratories. Phenol red exists as a red crystal that is stable in air. Its solubility is 0.77 grams per liter (g/l) in water and 2.9 g/l in ethanol. It is a weak acid with pKa = 8.00 at 20 °C (68 °F).
Weight | N/A |
---|---|
SKU | 2103-00, 6457-00 |
Purity | sodium salt (water soluble), 0.02% Indicator |
Brand | R&M |