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CAS 50984-88-8

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p-Xylenolphthalein

Description:
p-Xylenolphthalein, with the CAS number 50984-88-8, is a chemical compound that belongs to the class of phthalein indicators. It is characterized by its ability to change color in response to pH variations, making it useful in titrations and as a pH indicator in various chemical applications. The compound typically exhibits a color change from colorless in acidic solutions to pink in alkaline conditions, which is attributed to the structural changes in its molecular configuration upon protonation and deprotonation. p-Xylenolphthalein is soluble in organic solvents but has limited solubility in water. Its molecular structure includes two aromatic rings connected by a phthalate moiety, contributing to its stability and reactivity. This compound is often utilized in laboratory settings for analytical chemistry purposes, particularly in acid-base titrations. Safety precautions should be observed when handling p-xylenolphthalein, as with many chemical substances, due to potential health hazards associated with exposure.
Formula:C24H22O4
InChI:InChI=1/C24H22O4/c1-13-11-21(25)15(3)9-19(13)24(20-10-16(4)22(26)12-14(20)2)18-8-6-5-7-17(18)23(27)28-24/h5-12,25-26H,1-4H3
InChI key:InChIKey=PXCIPOXPHMTCIL-UHFFFAOYSA-N
SMILES:CC1=C(C2(C=3C(C(=O)O2)=CC=CC3)C4=C(C)C=C(O)C(C)=C4)C=C(C)C(O)=C1
Synonyms:
  • 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxy-2,5-dimethylphenyl)-
  • 3,3-Bis(4-hydroxy-2,5-dimethylphenyl)-1(3H)-isobenzofuranone
  • 3,3-Bis(4-hydroxy-2,5-dimethylphenyl)-2-benzofuran-1-one
  • 3,3-bis(4-hydroxy-2,5-dimethylphenyl)-2-benzofuran-1(3H)-one
  • p-Xylenolphthalein
  • p-xylenolphthalein (pH 9.0-10.5)
  • Xylenolphthalein
  • P-xylenolphthaleine
  • P-xylenolphthalein, 2′,5′,2″,5″-tetramethylphenolphthalein
  • 4,4'-[(3-Oxo-1,3-dihydroisobenzofuran)-1,1-diyl]bis(2,5-dimethylphenol)
  • See more synonyms
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