|Phenolphthalein Basic information|
|acid–base indicator Chemical Properties General Description Phenolphthalein molecular structure Phenolphthalein indicator Phenolphthalein test paper Pharmacology and Toxicology Pharmacokinetics Adverse reactions Application Production method|
|Synonyms:||.alpha, alpha.-Di(p-hydroxyphenyl)phthalide;1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-;1(3H)-Isobenzofuranone,3,3-bis(4-hydroxyphenyl)-;2,2-bis(p-hydroxyphenyl)phthalide;3,3-bis(4-hydroxyphenyl)-1(3h)-isobenzofuranon;alpha-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadien-1-ylidine)-o-toluicacid;alpha-di-(p-hydroxyphenyl)phthalide;alpha-di(p-hydroxyphenyl)phthalide|
|Product Categories:||API;Chemistry;Furan&Benzofuran;Analytical Chemistry;Indicator (pH);pH Indicators;Indicator Solutions;Indicators;Titration;Indicator SolutionsStains and Dyes;P;Stains&Dyes, A to;Phthalein|
|Phenolphthalein Chemical Properties|
|Melting point||261-263 °C (lit.)|
|Boiling point||417.49°C (rough estimate)|
|density||1.27 g/cm3 at 32 °C|
|refractive index||1.5400 (estimate)|
|storage temp.||room temp|
|storage temp.||no restrictions.|
|storage temp.||room temp|
|solubility||Soluble in alcohol. Slightly soluble in ether. Slightly soluble in dimethyl sulfoxide and insoluble in benzene or hexane.|
|color||White to yellow-white|
|Water Solubility||<0.1 g/100 mL|
|λmax||552nm, 553nm, 374nm, 205nm, 229nm, 276nm|
|Stability:||Stable. Incompatible with strong oxidizing agents, alkalies.|
|Major Application||Display device, sensors, semiconductors, fuel cells, photoreceptors, electronic packaging, authentication system for secure documents, inks, correction fluid, paints, detection of defects in films, floor coatings, textiles, corrosion testing, explosive, concrete, toys, detecting lipase activity of crop seeds, soaps, method for prevention of drugmisuse, cosmetics, diapers, detecting viable cells, carbohydrates, antimalarial, treating amyloid-associated diseases|
|CAS DataBase Reference||77-09-8(CAS DataBase Reference)|
|IARC||2B (Vol. 76) 2000|
|NIST Chemistry Reference||Phenolphthalein(77-09-8)|
|EPA Substance Registry System||3,3-Bis(4-hydroxyphenyl)phthalide (77-09-8)|
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