Molecule record

1-BUTENE

C4H8

56.11 g/mol

2D structure for 1-BUTENE

Molecular properties

Formula
C4H8
Molar mass
56.11 g·mol−1
Exact mass
56.0626 Da
1
0
0
0.00 Ų
2.4 (PubChem computed XLogP3-AA descriptor)
CAS
106-98-9
PubChem CID
7844

Interactions

Polarity
Often weakly polar or nonpolar unless other structural features dominate.
Acid-base behavior
Review ionizable groups and pKa data where available; ChemForge does not infer definitive acid-base state from identity alone.
Intermolecular forces
Assess dispersion, dipole interactions, hydrogen bonding, and ionic character from the functional groups shown.

Functional groups

Alkene

Physical properties

PropertyValueConditionsSource
Logp2.4PubChem computed XLogP3-AA descriptorPubChem(link only)

Common names and synonyms

  • .alpha.-Butene
  • .alpha.-Butylene
  • 1-Butene-1-13C
  • 1-Butylene
  • 1-C4H8
  • 106-98-9
  • 203-449-2
  • 25167-67-3
Show all 22 synonyms
  • 71057-26-6
  • BUTENE
  • But-1-ene
  • Butene-1
  • CHEBI:48362
  • DTXCID606746
  • DTXSID1026746
  • Ethylethylene
  • Isotactic poly(1-butene)
  • LY001N554L
  • MFCD00009383
  • RefChem:6715
  • alpha-Butene
  • alpha-Butylene

Structure identifiers

Canonical SMILES
CCC=C
Isomeric SMILES
CCC=C
InChI
InChI=1S/C4H8/c1-3-4-2/h3H,1,4H2,2H3
InChIKey
VXNZUUAINFGPBY-UHFFFAOYSA-N
PubChem CID
7844

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library

Simulated FTIR trace

Predicted FTIR / %T

4 cm-1 resolution / deterministic instrument profile

Hover for cursor
4000350030002500200015001000500100500wavenumber (cm−1)transmittance (%)

Peak assignments

1645 cm−1C=C alkene (simulated)
2960 cm−1sp3 C-H (simulated)

Simulated NMR

On-demand educational prediction for 1-BUTENE; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for 1-BUTENE; not experimental data.

Sources

Molecule identity

Retrieved 8/7/2026. Reuse status is summarized by the badge; open the source for full details.

simulated IR

ChemForge original educational simulation.

Open source record