Molecule record

but-3-en-2-one

C4H6O

70.09 g/mol

Loading structure

Molecular properties

Formula
C4H6O
Molar mass
70.09 g·mol−1
Exact mass
70.0419 Da
2
PubChem CID
6570

Functional groups

Alkane / alkyl carbon
Alkene
Ketone

Physical properties

No source-backed physical properties are curated for this molecule yet.

Common names and synonyms

  • 1-Buten-3-one
  • 2-Butenone
  • 3-Buten-2-one
  • 3-Butene-2-one
  • 3-Butenone-2
  • 3-Oxobutene
  • 3-oxo-1-butene
  • 78-94-4
Show all 24 synonyms
  • Acetone, methylene-
  • Acetyl ethylene
  • DTXSID3025671
  • Delta(3)-2-butenone
  • Ketone, methyl vinyl
  • METHYL VINYL KETONE
  • Methyl ethenyl ketone
  • Methyl-vinyl-cetone
  • Methylene acetone
  • Methylvinyl ketone
  • Methylvinylketon
  • Methylvinylketone
  • UN1251
  • Vinyl methyl ketone
  • gamma-Oxo-alpha-butylene
  • methylvinylcetone

Structure identifiers

Canonical SMILES
C=CC(C)=O
Isomeric SMILES
CC(=O)C=C
InChI
InChI=1S/C4H6O/c1-3-4(2)5/h3H,1H2,2H3
InChIKey
FUSUHKVFWTUUBE-UHFFFAOYSA-N
PubChem CID
6570

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library
No redistributable or simulated spectroscopy record is attached yet.

Simulated NMR

On-demand educational prediction for but-3-en-2-one; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for but-3-en-2-one; not experimental data.

Sources

Molecule identity

Retrieved 8/20/2026. Reuse status is summarized by the badge; open the source for full details.

Open source record
but-3-en-2-one - Formula, Structure | ChemArche