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CAS 616-84-2

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4-Amino-3-nitrobenzenesulfonic acid

Description:
4-Amino-3-nitrobenzenesulfonic acid, with the CAS number 616-84-2, is an organic compound characterized by the presence of an amino group (-NH2), a nitro group (-NO2), and a sulfonic acid group (-SO3H) attached to a benzene ring. This compound is typically a solid at room temperature and is soluble in water due to the sulfonic acid group, which enhances its polarity. It exhibits acidic properties due to the sulfonic acid functionality, making it a strong acid compared to carboxylic acids. The presence of both amino and nitro groups contributes to its reactivity, allowing it to participate in various chemical reactions, including electrophilic substitution and coupling reactions. 4-Amino-3-nitrobenzenesulfonic acid is often used in the synthesis of dyes, pigments, and pharmaceuticals, owing to its ability to act as a precursor in azo dye formation. Safety precautions should be taken when handling this compound, as it may pose health risks if ingested or inhaled.
Formula:C6H6N2O5S
InChI:InChI=1S/C6H6N2O5S/c7-5-2-1-4(14(11,12)13)3-6(5)8(9)10/h1-3H,7H2,(H,11,12,13)
InChI key:InChIKey=VZLLZDZTQPBHAZ-UHFFFAOYSA-N
SMILES:N(=O)(=O)C1=CC(S(=O)(=O)O)=CC=C1N
Synonyms:
  • 1-Amino-6-nitrobenzene-4-sulphonic acid
  • 2-Nitroaniline-4-Sulfonic Acid
  • 4-Amino-3-Nitrobenzene-1-Sulfonic Acid
  • 4-Amino-3-Nitrobenzenesulfonate
  • 4-Amino-3-nitrobenzenesulfonic acid
  • Benzenesulfonic Acid, 4-Amino-3-Nitro-
  • NSC 39866
  • NSC 51813
  • NSC 638700
  • Sulfanilic acid, 3-nitro-
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