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CAS 81-16-3

:

2-Amino-1-naphthalenesulfonic acid

Description:
2-Amino-1-naphthalenesulfonic acid, with the CAS number 81-16-3, is an organic compound characterized by its naphthalene structure substituted with an amino group and a sulfonic acid group. This compound appears as a solid, typically in a crystalline form, and is soluble in water due to the presence of the sulfonic acid group, which enhances its polarity. It is commonly used as a dye intermediate and in the synthesis of various organic compounds. The amino group contributes to its basicity, while the sulfonic acid group imparts acidic properties, making it a zwitterionic compound under certain conditions. 2-Amino-1-naphthalenesulfonic acid is known for its role in the production of azo dyes and as a reagent in analytical chemistry. It is important to handle this compound with care, as it may pose health risks if ingested or inhaled, and appropriate safety measures should be taken during its use in laboratory settings.
Formula:C10H9NO3S
InChI:InChI=1S/C10H9NO3S/c11-9-6-5-7-3-1-2-4-8(7)10(9)15(12,13)14/h1-6H,11H2,(H,12,13,14)
InChI key:InChIKey=GWIAAIUASRVOIA-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C=1C2=C(C=CC1N)C=CC=C2
Synonyms:
  • 1-Naphthalenesulfonic acid, 2-amino-
  • 1-Sulfo-2-naphthylamine
  • 2-Amino-1-naphthalenesulfonic acid
  • 2-Aminonaphthalene-1-Sulfonate
  • 2-Aminonaphthalene-1-Sulphonic Acid
  • 2-Aminonaphthalenesulfonic acid
  • 2-Naphthylamine-1-sulfonic acid
  • NSC 5523
  • Tobias acid
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