3-Butynoic acid

CAS Registry Number®

2345-51-9

CAS Name

3-Butynoic acid

Molecular Formula

C4H4O2

Molecular Mass

84.07

Cite this Page

3-Butynoic acid.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=2345-51-9 (retrieved 2024-11-21) (CAS RN: 2345-51-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    83 °C

  • Density (2)

    1.32 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H4O2/c1-2-3-4(5)6/h1H,3H2,(H,5,6)

InChIKey

InChIKey=KKAHGSQLSTUDAV-UHFFFAOYSA-N

SMILES

C(C(O)=O)C#C

Canonical SMILES

O=C(O)CC#C

Other Names for this Substance

  • 3-Butynoic acid
  • 2-Ethynylacetic acid

CAS INSIGHTSTM
Targeted protein degrader structure, illustration