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105945 Sigma-Aldrich

Phenolphthalein

ACS reagent

Synonym: 3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone

Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Cell Biology, Core Bioreagents, Hematology and Histology,
grade   ACS reagent
form   powder
visual transition interval   8.0 - 10, colorless to red
mp   261-263 °C(lit.)
solubility   acetone: soluble
absorption   λmax 374 nm (2nd)
  λmax 552 nm

Description

Packaging

100, 500 g in poly bottle

2.5 kg in poly drum

Application

Phenolphthalein is used as a general pH indicator. It is colorless in acidic solutions and turns pink in basic solutions. Phenolphthalein is also used as a model organic compound in the evaluation of the capture efficiency of various cyclodextrin constructs such as nanofiber-CD.

Price and Availability

Suggested Laboratory Gloves


Laboratory GlovesThis substance has been tested against several types of hand protection for CE compliance. Click below to find the recommended gloves for handling this product.



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Phenolphthalein solution

2% in ethanol, indicator

Phenolphthalein solution

Reag. Ph. Eur., indicator, 1% in ethanol

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