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3,3-Bis(4-hydroxyphenyl)-1(3H)-isobenzofuranone
P 1538
C20H14O4
38229090
5%
77-09-8
318.32
Bottle / Drum
P 1538 (OTTO) Phenolphthalein, indicator solution - adopts four different states in aqueous solution: Under very strongly acidic conditions, it exists in protonated form, providing an orange coloration. Under strongly acidic conditions, the lactone form is colorless. The singly deprotonated phenolate form (the anion form of phenol) gives the familiar pink color.
Phenolphthalein ] is a chemical compound with the formula C20H14O4 and is often written as "HIn" or "phph" in shorthand notation.
Laboratory chemicals, Diagnostic reagents & clinical reagents
Liquid
Colourless
Hazard Codes XnRisk Statements 40Safety Statements 36/37WGK Germany 3
DisclaimerThe above particulars do not release the customer from the obligation to carry out an inspection of goods received. For laboratory use only. Not for drug, medical, household, or any other unauthorized application. We assume no liability for misuse or unauthorized application of the product. Please test before use.