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CAS 617-97-0

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3-Methylbenzenesulfonic acid

Description:
3-Methylbenzenesulfonic acid, also known as m-toluenesulfonic acid, is an aromatic sulfonic acid characterized by the presence of a methyl group and a sulfonic acid group attached to a benzene ring. Its molecular formula is C7H8O3S, and it features a sulfonic acid (-SO3H) functional group, which imparts strong acidity and makes it highly soluble in water. This compound is typically a colorless to pale yellow liquid or solid, depending on its form, and has a strong, pungent odor. It is commonly used as a catalyst in organic synthesis, particularly in the production of esters and ethers, due to its ability to protonate substrates and facilitate reactions. Additionally, 3-methylbenzenesulfonic acid is utilized in the manufacture of dyes, pharmaceuticals, and surfactants. Safety precautions are necessary when handling this substance, as it can be corrosive and irritating to the skin and eyes. Proper storage in a cool, dry place, away from incompatible materials, is essential to maintain its stability and effectiveness.
Formula:C7H8O3S
InChI:InChI=1S/C7H8O3S/c1-6-3-2-4-7(5-6)11(8,9)10/h2-5H,1H3,(H,8,9,10)
InChI key:InChIKey=JDQDSEVNMTYMOC-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C1=CC(C)=CC=C1
Synonyms:
  • 3-Methylbenzene-1-sulfonic acid
  • 3-Methylbenzenesulfonic Acid
  • 3-Methylbenzensulfonic acid
  • Benzenesulfonic acid, 3-methyl-
  • m-Methylbenzenesulfonic acid
  • m-Toluenesulfonic acid
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