Butynone

Butynone
Names
IUPAC name
But-3-yn-2-one
Other names
  • Butyn-2-one
  • Acetylacetylene
  • Methyl ethynyl ketone
  • Acetylethyne
Identifiers
3D model (JSmol)
605353
ChEBI
ChemSpider
ECHA InfoCard 100.014.395
EC Number
  • 215-834-2
49292
UNII
  • InChI=1S/C4H4O/c1-3-4(2)5/h1H,2H3
    Key: XRGPFNGLRSIPSA-UHFFFAOYSA-N
  • CC(=O)C#C
Properties
HC2COCH3
Molar mass 116.072 g·mol−1
Boiling point 85 °C (185 °F; 358 K)
Hazards
GHS labelling:
‍‍
Danger
H225, H300, H315, H319, H335
P210, P233, P240, P241, P242, P243, P261, P264, P270, P271, P280, P301+P310+P330, P303+P361+P353, P304+P340+P312, P305+P351+P338, P332+P313, P337+P313, P362, P370+P378, P403+P233, P403+P235, P405, P501
Safety data sheet (SDS) Sigma-Aldrich Co., product no. 161314.
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Butynone is an organic compound and the simplest ynone. It is a reagent used in organic synthesis as a dienophile and Michael acceptor.

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