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.

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

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), 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 · Explore phenolphthalein: the essential chemical indicator whose molecular structure visibly reveals changes in acid-base concentration for precise measurement.

Dec 24, 2018 · The origins of phenolphthalein lie in the German chemical industry during the heyday of artificial dye discovery in the late 19th century.

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 …

Phenolphthalein is defined as a yellowish powder that is soluble in alcohol and alkaline solutions, but only slightly soluble in water, exhibiting a colorless form in acidic solutions and red or pink …

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

Oct 1, 2024 · Phenolphthalein is widely used as an acid-base indicator in analytical chemistry. It exhibits a distinct color change from colorless to raspberry-purple in the pH range of 8.3-10.0, …