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CAS 138-42-1

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4-Nitrobenzenesulfonic acid

Description:
4-Nitrobenzenesulfonic acid is an aromatic sulfonic acid characterized by the presence of both a nitro group and a sulfonic acid group attached to a benzene ring. Its molecular formula is C6H6N2O4S, and it features a sulfonic acid (-SO3H) group that imparts strong acidity, making it soluble in water and polar solvents. The nitro group (-NO2) contributes to its reactivity, particularly in electrophilic substitution reactions. This compound is typically a yellow to brown solid and is known for its use in organic synthesis, particularly as a reagent in the preparation of dyes and pharmaceuticals. Additionally, it can serve as a sulfonating agent and is utilized in various industrial applications. Due to its acidic nature, it can also act as a catalyst in certain chemical reactions. Safety precautions should be taken when handling this compound, as it can be harmful if ingested or inhaled, and it may cause skin and eye irritation.
Formula:C6H5NO5S
InChI:InChI=1S/C6H5NO5S/c8-7(9)5-1-3-6(4-2-5)13(10,11)12/h1-4H,(H,10,11,12)
InChI key:InChIKey=SPXOTSHWBDUUMT-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C1=CC=C(N(=O)=O)C=C1
Synonyms:
  • 4-Nitrobenzenesulfonate
  • 4-Nitrobenzenesulfonic acid
  • 4-Nitrophenylsulfonic acid
  • Benzenesulfonic Acid, 4-Nitro-
  • Benzenesulfonic acid, p-nitro-
  • NSC 5376
  • p-Nitrobenzenesulfonic acid
  • p-Nitrophenylsulfonic acid
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