Phenolphthalein's common use is as an indicator in acid-base titrations. It also serves as a component of universal indicator, together with methyl red, bromothymol blue, and thymol blue.

Jan 19, 2022 · Learn about phenolphthalein indicator, including its structure, how to make it, and what colors it turns at various pH values.

Phenolphthalein | C20H14O4 | CID 4764 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity …

Phenolphthalein, (C20H14O4), an organic compound of the phthalein family that is widely employed as an acid-base indicator. As an indicator of a solution’s pH, phenolphthalein is …

Nov 10, 2025 · Phenolphthalein is a synthetic organic compound and a weak acid that serves as one of the most common and recognizable textpH indicators in chemistry. The compound, …

Phenolphthalein, ACS reagent Expand 24-1450 Phenolphthalein, SAJ first grade, ≥97.0% Expand 24-1440 Phenolphthalein, JIS special grade, ≥98.0%

Nov 1, 2025 · Phenolphthalein serves as a fundamental acid-base indicator in titrations and qualitative analyses. It is valued for its sharp color transition in the alkaline region, which helps …

Jul 23, 2025 · Phenolphthalein (C20H14O4) is an organic chemical compound often used as an indicator in acid-base titrations. It is slightly soluble in water and usually is dissolved in alcohol …

Apr 17, 2025 · Learn all about phenolphthalein, its structure, colour change, uses in acid-base reactions, formula, pronunciation, and role as a powerful chemical indicator.

Feb 10, 2023 · Phenolphthalein is an organic compound that serves as a laboratory reagent and pH indicator. It stimulates the intestinal mucosa and constricts smooth muscles, causing …