Propiolic acid

CAS Registry Number®

471-25-0

CAS Name

Propiolic acid

Molecular Formula

C3H2O2

Molecular Mass

70.05

Cite this Page

Propiolic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=471-25-0 (retrieved 2025-03-31) (CAS RN: 471-25-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    57 °C @ Press: 12 Torr

  • Melting Point (2)

    9 °C

  • Density (3)

    1.1308 g/cm³ @ Temp: 25 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5)

InChIKey

InChIKey=UORVCLMRJXCDCP-UHFFFAOYSA-N

SMILES

C(C#C)(O)=O

Canonical SMILES

O=C(O)C#C

Other Names for this Substance

  • 2-Propynoic acid
  • Propiolic acid
  • Acetylenecarboxylic acid
  • Propargylic acid
  • Propynoic acid

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