Ethylene

CAS Registry Number®

74-85-1

CAS Name

Ethylene

Molecular Formula

C2H4

Molecular Mass

28.05

Cite this Page

Ethylene.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?ref=74-85-1 (retrieved 2025-07-02) (CAS RN: 74-85-1).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    -102.4 °C @ Press: 700 Torr

  • Melting Point (1)

    -169 °C

  • Density (1)

    0.56737 g/cm³ @ Temp: -103.8 °C

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/C2H4/c1-2/h1-2H2

InChIKey

InChIKey=VGGSQFUCUMXWEO-UHFFFAOYSA-N

SMILES

C=C

Canonical SMILES

C=C

Other Names for this Substance

  • Ethene
  • Ethylene
  • Acetene
  • Bicarburetted hydrogen
  • Elayl

View All

Deleted or Replaced CAS Registry Numbers

33060-30-9, 87701-64-2, 87701-65-3

CAS INSIGHTSTM
Purple and red filaments produced by electrostatic discharge inside a plasma ball.