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CAS 125-20-2

:

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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Found 13 products.
  • Thymolphthalein

    CAS:
    Formula:C28H30O4
    Color and Shape:White to Orange to Green powder to crystal
    Molecular weight:430.54

    Ref: 3B-T0237

    1g
    23.00€
    25g
    54.00€
  • Thymolphthalein

    CAS:
    <p>Thymolphthalein acts as pH indicator, as reagent for blood after decolorizing the alkaline solution by boiling with zinc dust. This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy bran</p>
    Formula:C28H30O4
    Color and Shape:powder, White
    Molecular weight:430.54

    Ref: 02-B23896

    10g
    30.00€
    50g
    84.00€
    250g
    To inquire
  • Thymolphthalein, ACS

    CAS:
    <p>pH indicator; colorless below pH 9.3, blue above pH 10.5</p>
    Formula:C28H30O4
    Molecular weight:430.54

    Ref: 02-016245

    5g
    41.00€
    25g
    105.00€
  • 1(3H)-Isobenzofuranone, 3,3-bis[4-hydroxy-2-methyl-5-(1-methylethyl)phenyl]-

    CAS:
    Formula:C28H30O4
    Purity:96%
    Color and Shape:Solid
    Molecular weight:430.5354

    Ref: IN-DA000MYL

    5g
    20.00€
    25g
    26.00€
    100g
    41.00€
  • Thymolphthalein

    CAS:
    Formula:C28H30O4
    Molecular weight:430.54

    Ref: 4Z-D-164093

    5mg
    To inquire
    10mg
    444.00€
    25mg
    635.00€
    50mg
    825.00€
    100mg
    To inquire
  • Thymolphthalein

    CAS:
    Formula:C28H30O4
    Color and Shape:White to off-white powder or crystals
    Molecular weight:430.55

    Ref: 7W-GT1470

    10g
    22.00€
    25g
    38.00€
    50g
    63.00€
    100g
    109.00€
    250g
    214.00€
  • Thymolphthalein

    CAS:
    <p>Thymolphthalein</p>
    Purity:IND
    Molecular weight:430.54g/mol

    Ref: 54-OR1015241

    5g
    32.00€
    25g
    46.00€
    100g
    30.00€
    10kg
    1,747.00€
    500g
    134.00€
    2.5kg
    491.00€
  • Thymolphthalein (0.1% in ca. 95% Ethanol) [for pH Determination and Titration]

    CAS:
    Formula:C28H30O4
    Color and Shape:Colorless to Almost colorless clear liquid
    Molecular weight:430.54

    Ref: 3B-T0130

    100ml
    28.00€
    500ml
    80.00€
  • Thymolphthalein, 95%, ACS grade

    CAS:
    Formula:C28H30O4
    Purity:(spectrophotometry) ≥ 95.0%
    Color and Shape:White or off-white powder or crystals
    Molecular weight:430.55

    Ref: 7W-GT9118

    5g
    29.00€
    10g
    42.00€
    25g
    74.00€
    100g
    171.00€
  • Thymolphthalein

    Controlled Product
    CAS:
    Formula:C28H30O4
    Color and Shape:Neat
    Molecular weight:430.54

    Ref: TR-T413093

    1g
    89.00€
    5g
    96.00€
    100mg
    81.00€
  • Thymolphthalein

    CAS:
    <p>Phthalein dye used as a acid–base indicator in pH range of 9.3–10.5</p>
    Formula:C28H30O4
    Color and Shape:Powder
    Molecular weight:430.54 g/mol

    Ref: 3D-FT01463

    1kg
    571.00€
    2kg
    924.00€
    5kg
    1,449.00€
    250g
    266.00€
    500g
    405.00€
  • Thymolphthalein ACS, ExiPlus, Multi-Compendial

    CAS:
    Formula:C28H30O4
    Color and Shape:White to off-white, Crystalline powder, Clear
    Molecular weight:430.55

    Ref: SR-24474

    5g
    14.00€
    25g
    21.00€
    100g
    45.00€
  • Thymolphthalein

    CAS:
    Purity:95%
    Color and Shape:Solid
    Molecular weight:430.214

    Ref: 10-F847804

    5g
    13.00€
    25g
    14.00€