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CAS 40828-54-4

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1H-Benzimidazole-2-sulfonic acid

Description:
1H-Benzimidazole-2-sulfonic acid, with the CAS number 40828-54-4, is an organic compound characterized by its benzimidazole core structure, which is a bicyclic compound containing a fused benzene and imidazole ring. This compound features a sulfonic acid group (-SO3H) at the 2-position of the benzimidazole ring, imparting strong acidic properties. It is typically a white to off-white solid that is soluble in water, making it useful in various applications, including as a pH regulator and in the synthesis of other chemical compounds. The sulfonic acid group enhances its reactivity, allowing it to participate in sulfonation reactions and serve as a potential intermediate in organic synthesis. Additionally, 1H-benzimidazole-2-sulfonic acid may exhibit biological activity, making it of interest in pharmaceutical research. Its stability under standard conditions and the ability to form salts with bases further contribute to its utility in chemical processes.
Formula:C7H6N2O3S
InChI:InChI=1S/C7H6N2O3S/c10-13(11,12)7-8-5-3-1-2-4-6(5)9-7/h1-4H,(H,8,9)(H,10,11,12)
InChI key:InChIKey=GWXQTTKUYBEZBP-UHFFFAOYSA-N
SMILES:S(=O)(=O)(O)C=1NC=2C(N1)=CC=CC2
Synonyms:
  • 1H-1,3-Benzodiazole-2-sulfonic acid
  • 1H-Benzimidazole-2-sulfonic acid
  • 1H-Benzoimidazole-2-sulfonic acid
  • 2-Benzimidazolesulfonic acid
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