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CAS 7474-78-4

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3,4-Diaminobenzenesulfonic acid

Description:
3,4-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, which is a key feature due to the presence of the sulfonic acid group. It has a melting point that varies depending on purity and form. 3,4-Diaminobenzenesulfonic acid is primarily used in the synthesis of azo dyes and as a reagent in various chemical analyses, particularly in the determination of nitrite and nitrate ions. Its amino groups make it a versatile building block in organic synthesis, allowing for further functionalization. Additionally, it exhibits properties that can be utilized in pharmaceuticals and as an intermediate in the production of other chemical compounds. Safety precautions should be taken when handling this substance, as it may pose health risks upon exposure.
Formula:C6H8N2O3S
InChI:InChI=1S/C6H8N2O3S/c7-5-2-1-4(3-6(5)8)12(9,10)11/h1-3H,7-8H2,(H,9,10,11)
InChI key:InChIKey=FKSRSWQTEJTBMI-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C1=CC(N)=C(N)C=C1
Synonyms:
  • 3,4-Diaminobenzenesulphonic acid
  • 4-Amino-3-ammoniobenzenesulfonate
  • Benzenesulfonic acid, 3,4-diamino-
  • Nsc 401086
  • 3,4-Diaminobenzenesulfonic acid
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