Acetoin

CAS Registry Number®

513-86-0

CAS Name

Acetoin

Molecular Formula

C4H8O2

Molecular Mass

88.11

Cite this Page

Acetoin.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=513-86-0 (retrieved 2025-03-28) (CAS RN: 513-86-0).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    148 °C @ Press: 760 Torr

  • Melting Point (1)

    15 °C

  • Density (2)

    1.01 g/cm³ @ Temp: 25 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H8O2/c1-3(5)4(2)6/h3,5H,1-2H3

InChIKey

InChIKey=ROWKJAVDOGWPAT-UHFFFAOYSA-N

SMILES

C(C(C)=O)(C)O

Canonical SMILES

O=C(C)C(O)C

Other Names for this Substance

  • 2-Butanone, 3-hydroxy-
  • 3-Hydroxy-2-butanone
  • Acetoin
  • 2,3-Butanolone
  • Dimethylketol

View All

Deleted or Replaced CAS Registry Numbers

52217-02-4

CAS INSIGHTSTM
A hexagon honeycomb pattern featuring icons representing Data Fabric Analytics, Antennas, Construction, DNA, and Sustainability Bamboo. Each hexagon contains a distinct symbol related to its theme, arranged in a visually appealing and interconnected design.