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CAS 104-15-4

:

Benzenesulfonic acid, 4-methyl-

Description:
4-Methylbenzenesulfonic acid, also known as p-toluenesulfonic acid, is an aromatic sulfonic acid characterized by the presence of a methyl group attached to the benzene ring at the para position relative to the sulfonic acid group (-SO3H). This compound is a colorless to pale yellow solid that is highly soluble in water and polar organic solvents. It exhibits strong acidity, making it a useful reagent in organic synthesis, particularly as a catalyst in esterification and other reactions requiring protonation. The sulfonic acid group enhances the compound's ability to act as a strong acid, and its aromatic structure contributes to its stability. Additionally, 4-methylbenzenesulfonic acid is often used in the production of surfactants, dyes, and pharmaceuticals. Safety precautions should be taken when handling this compound, as it can cause irritation to the skin, eyes, and respiratory tract. Overall, its unique properties make it a valuable substance in various chemical applications.
Formula:C7H8O3S
InChI:InChI=1/C7H8O3S/c1-6-2-4-7(5-3-6)11(8,9)10/h2-5H,1H3,(H,8,9,10)
InChI key:InChIKey=JOXIMZWYDAKGHI-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C1=CC=C(C)C=C1
Synonyms:
  • 1-Methyl-4-(sulfosulfonyl)benzene
  • 4-Methyl-benzensulfonic acid
  • 4-Methylbenzene-1-sulfonic acid
  • 4-Methylbenzenesulfonic acid
  • 4-Toluenesulfonic Acid
  • Acide toluene-4-sulfonique
  • Acido Tolueno-4-Sulfonico
  • Activator 100T3
  • Ad 3302W
  • Aktivator 100 SR
  • See more synonyms
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Found 10 products.
  • p-Toluenesulfonic Acid Monohydrate

    CAS:
    Formula:C7H8O3S·H2O
    Purity:>98.0%(T)(HPLC)
    Color and Shape:White to Almost white powder to crystal
    Molecular weight:190.22

    Ref: 3B-T0267

    25g
    29.00€
    500g
    45.00€
  • 4-Methylbenzenesulfonic acid

    CAS:
    Formula:C7H8O3S
    Purity:95%
    Color and Shape:Solid
    Molecular weight:172.2016

    Ref: IN-DA007WED

    5g
    26.00€
    10g
    24.00€
    1kg
    120.00€
    25g
    26.00€
    50g
    28.00€
    5kg
    138.00€
    100g
    32.00€
    10kg
    203.00€
    250g
    50.00€
    25kg
    335.00€
    500g
    70.00€
  • 4-Methylbenzenesulfonic acid

    CAS:
    <p>4-Methylbenzenesulfonic acid</p>
    Purity:99%
    Molecular weight:172.2g/mol

    Ref: 54-OR1043464

    5g
    81.00€
    1kg
    189.00€
    25g
    92.00€
    100g
    98.00€
    500g
    138.00€
  • p-Toluenesulfonic Acid

    CAS:
    Formula:C7H8O3S
    Color and Shape:White To Off-White Solid
    Molecular weight:172.20

    Ref: 4Z-B-444

    5mg
    To inquire
    10mg
    349.00€
    25mg
    444.00€
    50mg
    635.00€
    100mg
    To inquire
  • p-Toluenesulfonic acid

    CAS:
    Formula:C7H8O3S
    Color and Shape:Neat
    Molecular weight:172.2016

    Ref: 04-C17594750

    250mg
    76.00€
  • p-Toluenesulfonic Acid Hydrate

    Controlled Product
    CAS:
    <p>Applications p-Toluenesulfonic Acid Hydrate (Lisinopril EP Impurity B) is used in the synthesis of resveratrol. Also used in the synthesis of oxane derivatives as antimalarial agents.<br> Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package<br>References Davis, M. et al.: Org. Prep. Proc. Int., 45, 304 (2013); Wang, X. et al.: J. Med. Chem., 56, 2547 (2013);<br></p>
    Formula:C7H8O3S•x(H2O)
    Color and Shape:Neat
    Molecular weight:172.2 + x(18.02)

    Ref: TR-T733864

    1mg
    256.00€
    10mg
    1,683.00€
  • 4-Methylbenzenesulfonic acid

    CAS:
    Purity:99%
    Molecular weight:172.198

    Ref: 10-F848159

    5g
    13.00€
    25g
    14.00€
  • Escitalopram EP Impurity J

    CAS:
    Formula:C7H8O3S
    Molecular weight:172.2

    Ref: ST-EA-CP-E13010

    10mg
    To inquire
    25mg
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    50mg
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    100mg
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  • Anastrozole EP Impurity F

    CAS:
    Formula:C7H8O3S
    Molecular weight:172.20

    Ref: ST-EA-CP-A60006

    10mg
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    25mg
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    50mg
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    100mg
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  • Sultamicillin EP Impurity B

    CAS:
    Formula:C7H8O3S
    Molecular weight:172.20

    Ref: ST-EA-CP-S48002

    10mg
    To inquire
    25mg
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    50mg
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    100mg
    To inquire