Phenolphthalein CAS 77-09-8

Application:

1. Used as an acid indicator, with a color change range of pH 8.2 (colorless) -10.0 (red). Phenolphthalein is also a medication that acts as a laxative on the colon and is used to treat constipation.

2. Used as an acid-base indicator, non aqueous solution titration indicator, and chromatographic analysis reagent..