2-Butynoic acid

CAS Registry Number®

590-93-2

CAS Name

2-Butynoic acid

Molecular Formula

C4H4O2

Molecular Mass

84.07

Cite this Page

2-Butynoic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=590-93-2 (retrieved 2024-11-24) (CAS RN: 590-93-2).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    203 °C

  • Melting Point (1)

    78 °C

Source(s)

  • (1) PhysProp data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

Other Names and Identifiers

InChI

InChI=1S/C4H4O2/c1-2-3-4(5)6/h1H3,(H,5,6)

InChIKey

InChIKey=LUEHNHVFDCZTGL-UHFFFAOYSA-N

SMILES

C(C(O)=O)#CC

Canonical SMILES

O=C(O)C#CC

Other Names for this Substance

  • 2-Butynoic acid
  • Tetrolic acid
  • 3-Methylpropiolic acid
  • 1-Propynecarboxylic acid
  • Methylpropynoic acid

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