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CAS 88-45-9

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2,5-Diaminobenzenesulfonic acid

Description:
2,5-Diaminobenzenesulfonic acid, also known as sulfanilic acid, is an aromatic sulfonic acid characterized by the presence of two amino groups (-NH2) and a sulfonic acid group (-SO3H) attached to a benzene ring. This compound is typically a white to light yellow crystalline solid that is soluble in water, making it useful in various applications. It has a melting point that varies depending on purity and form, and it is known for its ability to form salts and complexes with metals. 2,5-Diaminobenzenesulfonic acid is primarily utilized in the dye industry, particularly in the synthesis of azo dyes, and serves as a reagent in analytical chemistry for the detection of nitrites. Additionally, it has applications in the production of pharmaceuticals and as a pH indicator. Due to the presence of amino and sulfonic groups, it exhibits both basic and acidic properties, contributing to its versatility in chemical reactions. Safety precautions should be taken when handling this compound, as it may pose health risks upon exposure.
Formula:C6H8N2O3S
InChI:InChI=1S/C6H8N2O3S/c7-4-1-2-5(8)6(3-4)12(9,10)11/h1-3H,7-8H2,(H,9,10,11)
InChI key:InChIKey=HEAHMJLHQCESBZ-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C1=C(N)C=CC(N)=C1
Synonyms:
  • 1,4-Diamino-2-benzenesulfonic acid
  • 1,4-Diaminobenzene-2-sulfonic acid
  • 1,4-Diaminobenzene-3-sulfonic acid
  • 1,4-Phenylenediamine-2-sulfonic acid
  • 1,4-Phenylenediamine-3-sulfonic acid
  • 2,5-Diaminobenzene-1-sulfonic acid
  • 2,5-Diaminobenzenesulfonate
  • 2,5-Diaminobenzenesulphonic Acid
  • 2,5-Diaminophenyl-1-sulfonic acid
  • 2-Sulfo-1,4-phenylenediamine
  • See more synonyms
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