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CAS 525-37-1

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1,6-Naphthalenedisulfonic acid

Description:
1,6-Naphthalenedisulfonic acid, with the CAS number 525-37-1, is an aromatic sulfonic acid characterized by the presence of two sulfonic acid groups (-SO3H) attached to a naphthalene ring at the 1 and 6 positions. This compound is typically a white to light yellow crystalline solid that is soluble in water, making it useful in various applications. Its sulfonic acid groups impart strong acidity and enhance its reactivity, allowing it to participate in various chemical reactions, including sulfonation and coupling reactions. 1,6-Naphthalenedisulfonic acid is often utilized as a dye intermediate, in the synthesis of pigments, and as a dispersing agent in textile and paper industries. Additionally, it can serve as a reagent in organic synthesis and as a pH indicator due to its ability to change color in response to pH variations. Its stability under normal conditions and its ability to form salts with bases further contribute to its versatility in chemical applications.
Formula:C10H8O6S2
InChI:InChI=1S/C10H8O6S2/c11-17(12,13)8-4-5-9-7(6-8)2-1-3-10(9)18(14,15)16/h1-6H,(H,11,12,13)(H,14,15,16)
InChI key:InChIKey=HEWDOWUUTBCVJP-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C=1C2=C(C=C(S(=O)(=O)O)C=C2)C=CC1
Synonyms:
  • 1,6-Disulfonaphthalene
  • 2,5-Naphthalenedisulfonic acid
  • Chebi:30891
  • Eiver-pick acid
  • Naphthalene-1,6-disulfonic acid
  • 1,6-Naphthalenedisulfonic acid
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