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Molecule record

2-PENTENE

C5H10

70.13 g/mol

2D structure for 2-PENTENE

Molecular properties

Formula
C5H10
Molar mass
70.13 g·mol−1
Exact mass
70.0783 Da
1
0
0
0.00 Ų
2.1 (PubChem computed XLogP3-AA descriptor)
CAS
109-68-2
PubChem CID
12585

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
Logp2.1PubChem computed XLogP3-AA descriptorPubChem(link only)

Common names and synonyms

  • .beta.-n-Amylene
  • 109-68-2
  • 2-Amylene
  • 2-Pentene,c&t
  • 3-Pentene
  • CH3CH=CHC2H5
  • Methylethylethylene
  • QMMOXUPEWRXHJS-HWKANZROSA-N
Show all 22 synonyms
  • QMMOXUPEWRXHJS-UHFFFAOYSA-N
  • RefChem:171272
  • SCHEMBL19252
  • SCHEMBL20189
  • SCHEMBL20190
  • SCHEMBL20191
  • SCHEMBL20382
  • SCHEMBL7896
  • SCHEMBL8145
  • methyl-2-butene
  • pent-2-ene
  • s-Methylethylethylene
  • ss-n-Amylene
  • sym-Methylethylethylene

Structure identifiers

Canonical SMILES
CCC=CC
Isomeric SMILES
CCC=CC
InChI
InChI=1S/C5H10/c1-3-5-4-2/h3,5H,4H2,1-2H3
InChIKey
QMMOXUPEWRXHJS-UHFFFAOYSA-N
PubChem CID
12585

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library

IR spectrum

ChemArche Original Educational Content(redistributable)

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 2-PENTENE; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for 2-PENTENE; not experimental data.

Sources

Molecule identity

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

PubChem(link only)

simulated IR

ChemForge original educational simulation.

ChemArche Original Educational Content(redistributable)
Open source record