2-Pentene

CAS Registry Number®

109-68-2

CAS Name

2-Pentene

Molecular Formula

C5H10

Molecular Mass

70.13

Cite this Page

2-Pentene.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/ChemicalDetail.aspx?ref=109-68-2 (retrieved 2025-07-04) (CAS RN: 109-68-2).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    35-36 °C @ Press: 760 Torr

  • Melting Point (2)

    -187 °C

  • Density (3)

    0.9584 g/cm³ @ Temp: 20 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C5H10/c1-3-5-4-2/h3,5H,4H2,1-2H3

InChIKey

InChIKey=QMMOXUPEWRXHJS-UHFFFAOYSA-N

SMILES

C(CC)=CC

Canonical SMILES

C(=CCC)C

Other Names for this Substance

  • 2-Pentene
  • β-n-Amylene
  • sym-Methylethylethylene
  • 1-Methyl-2-ethylethylene
  • 3-Pentene

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CAS INSIGHTSTM
Aspergillus fungus, computer illustration. This is a toxic fungus that causes diseases in humans.