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CAS 135-51-3

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2-Naphthol-3,6-disulfonic acid disodium salt

Description:
2-Naphthol-3,6-disulfonic acid disodium salt, with the CAS number 135-51-3, is an organic compound characterized by its sulfonic acid groups attached to a naphthalene ring. This compound is a disodium salt, indicating that it contains two sodium ions that balance the negative charges from the sulfonic acid groups. It is typically a white to light yellow crystalline powder that is soluble in water, making it useful in various aqueous applications. The presence of sulfonic acid groups imparts strong acidic properties, contributing to its reactivity and ability to form complexes with metal ions. This compound is often utilized in dye manufacturing, particularly in the production of azo dyes, and serves as a pH indicator due to its color-changing properties in different pH environments. Additionally, it may have applications in the textile industry and as a reagent in analytical chemistry. Safety data should be consulted for handling, as with all chemical substances, to ensure proper precautions are taken.
Formula:C10H8O7S2·2Na
InChI:InChI=1S/C10H8O7S2.2Na/c11-9-4-6-1-2-8(18(12,13)14)3-7(6)5-10(9)19(15,16)17;;/h1-5,11H,(H,12,13,14)(H,15,16,17);;
InChI key:InChIKey=WISRFHYVKIAZSW-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C1=CC2=C(C=C1O)C=CC(S(=O)(=O)O)=C2.[Na]
Synonyms:
  • 2,7-Naphthalenedisulfonic acid, 3-hydroxy-, disodium salt
  • 2,7-Naphthalenedisulfonic acid, 3-hydroxy-, sodium salt (1:2)
  • 2-Hydroxy-3,6-naphthalenedisulfonic acid disodium salt
  • 2-Naphthol disodium sulfonate ( R salt
  • 2-Naphthol-3,6-Disodium Disulfonate
  • 2-Naphthol-3,6-disulfonic acid disodium salt
  • 3-Hydroxynaphthalene-2,7-Disulfonate
  • 3-Hydroxynaphthalene-2,7-disulfonic acid disodium salt
  • Disodium 2-hydroxy-3,6-naphthalenedisulfonate
  • Disodium 2-naphthol-3,6-disulfonate
  • See more synonyms
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