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CAS 125-20-2

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Thymolphthalein

Description:
Thymolphthalein is a synthetic organic compound commonly used as a pH indicator in various chemical applications. It is a colorless to pale yellow solid at room temperature and exhibits a distinct color change from colorless to blue as the pH of a solution increases from acidic to alkaline conditions, typically around a pH range of 9.3 to 10.5. This property makes it particularly useful in titrations and other analytical chemistry procedures. Thymolphthalein is soluble in alcohol and ether but has limited solubility in water, which is a characteristic of many organic indicators. Its chemical structure features a phthalate moiety, which is responsible for its color-changing properties. In addition to its use in laboratories, thymolphthalein has applications in the field of biology and environmental science for monitoring pH levels. However, it is important to handle this compound with care, as it may pose health risks if ingested or inhaled, and appropriate safety measures should be observed during its use.
Formula:C28H30O4
InChI:InChI=1S/C28H30O4/c1-15(2)20-13-23(17(5)11-25(20)29)28(22-10-8-7-9-19(22)27(31)32-28)24-14-21(16(3)4)26(30)12-18(24)6/h7-16,29-30H,1-6H3
InChI key:InChIKey=LDKDGDIWEUUXSH-UHFFFAOYSA-N
SMILES:CC=1C(C2(C=3C(C(=O)O2)=CC=CC3)C4=CC(C(C)C)=C(O)C=C4C)=CC(C(C)C)=C(O)C1
Synonyms:
  • 1(3H)-Isobenzofuranone, 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-
  • 2-[(4-Hydroxy-5-isopropyl-2-methylphenyl)(5-isopropyl-2-methyl-4-oxo-2,5-cyclohexadien-1-ylidene)methyl]benzoic acid
  • 2′,2′′-Diisopropyl-5′,5′′-dimethylphenolphthalein
  • 3,3-Bis(4-Hydroxy-5-Isopropyl-O-Tolyl)Phthalide
  • 3,3-Bis(4-hydroxy-2-methyl-5-propan-2-ylphenyl)-2-benzofuran-1-one
  • 3,3-Bis(4-hydroxy-3-isopropyl-6-methyl)phthalide
  • 3,3-Bis-(4-hydroxy-5-isopropyl-2-methyl-phenyl)-3H-isobenzofuran-1-one
  • 3,3-Bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-1(3H)-isobenzofuranone
  • 3,3-bis[4-hydroxy-2-methyl-5-(propan-2-yl)phenyl]-2-benzofuran-1(3H)-one
  • NSC 2186
  • See more synonyms
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