2(5H)-Furanone

CAS Registry Number®

497-23-4

CAS Name

2(5H)-Furanone

Molecular Formula

C4H4O2

Molecular Mass

84.07

Cite this Page

2(5H)-Furanone.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=497-23-4 (retrieved 2025-03-28) (CAS RN: 497-23-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    90-93 °C @ Press: 13 Torr

  • Melting Point (2)

    4.5 °C

  • Density (3)

    1.185 g/cm³ (liquid)

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H4O2/c5-4-2-1-3-6-4/h1-2H,3H2

InChIKey

InChIKey=VIHAEDVKXSOUAT-UHFFFAOYSA-N

SMILES

O=C1C=CCO1

Canonical SMILES

O=C1OCC=C1

Other Names for this Substance

  • 2(5H)-Furanone
  • Crotonic acid, 4-hydroxy-, γ-lactone
  • γ-Hydroxycrotonic acid lactone
  • Isocrotonolactone
  • 4-Hydroxy-2-butenoic acid γ-lactone

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