3-Butynoic acid

• Formula: C₄H₄O₂
• Molecular weight: 84.0734
• IUPAC Standard InChI: InChI=1S/C4H4O2/c1-2-3-4(5)6/h1H,3H2,(H,5,6) Copy

  
• IUPAC Standard InChIKey: KKAHGSQLSTUDAV-UHFFFAOYSA-N Copy
• CAS Registry Number: 2345-51-9
• Chemical structure:
  This structure is also available as a 2d Mol file or as a computed 3d SD file
  The 3d structure may be viewed using Java or Javascript.
• Other names: CH≡CCH2COOH; but-3-ynoic acid
• Information on this page:
  • Notes
• Other data available:
  • Reaction thermochemistry data
  • Mass spectrum (electron ionization)
• Data at other public NIST sites:
  • Gas Phase Kinetics Database
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Notes

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• Data from NIST Standard Reference Database 69: NIST Chemistry WebBook
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