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Substance Name: Nitrous acid
RN: 7782-77-6
UNII: T2I5UM75DN
InChIKey: IOVCWXUNBOPUCH-UHFFFAOYSA-N

Note

  • Nitrous acid (HNO2). A weak acid that exists only in solution. It can form water-soluble nitrites and stable esters. (From Merck Index, 11th ed)

Molecular Formula

  • H-N-O2

Molecular Weight

  • 47.0129
 

Classification Code

  • Mutation Data
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Names and Synonyms

Name of Substance

  • Nitrous acid

MeSH Heading

  • Nitrous acid

Synonyms

  • EINECS 231-963-7
  • HSDB 7801
  • Kyselina dusite
  • Kyselina dusite [Czech]
  • Nitrosyl hydroxide
  • Nitrous acid
  • UNII-T2I5UM75DN

Systematic Names

  • Nitrosyl hydroxide
  • Nitrous acid

Registry Numbers

CAS Registry Number

  • 7782-77-6

FDA UNII

  • T2I5UM75DN

Other Registry Numbers

  • 17310-27-9
  • 62498-15-1
  • 62641-25-2
  • 78686-39-2
  • 81744-89-0
  • 88454-09-5

System Generated Number

  • 0007782776

Structure Descriptors

InChI

1S/HNO2/c2-1-3/h(H,2,3)

InChIKey

IOVCWXUNBOPUCH-UHFFFAOYSA-N

Smiles

N(=O)O