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Topic summary

2-Furanone

2-Furanone
Names Preferred IUPAC name
Furan-2(5H)-one
Other names
Furan-2-one, γ-crotonolactone, butenolide, 5H-furan-2-one
Identifiers
3D model (JSmol)
383585 ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.007.128EC Number
  • 207-839-3
773828 KEGG
MeSHbutenolide
UNII
  • InChI=1S/C4H4O2/c5-4-2-1-3-6-4/h1-2H,3H2
    Key: VIHAEDVKXSOUAT-UHFFFAOYSA-N
  • InChI=1/C4H4O2/c5-4-2-1-3-6-4/h1-2H,3H2
    Key: VIHAEDVKXSOUAT-UHFFFAOYAD
  • O=C\1OC/C=C/1
Properties C4H4O2Molar mass84.07336 Density1.185 g/cm, liquid Melting point4 to 5 °C (39 to 41 °F; 277 to 278 K) Boiling point86 to 87 °C (187 to 189 °F; 359 to 360 K) 12 mm Hg
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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2-Furanone is a heterocyclicorganic compound. It is also known as γ-crotonolactone (GCL), as it is formally the lactone derived from γ-hydroxyisocrotonic acid. The chemical is colloquially called "butenolide", and is the parent structure for the butenolide class of compounds. It is a colourless liquid.

Wikipedia source