2,3-Butanediol

CAS Registry Number®

513-85-9

CAS Name

2,3-Butanediol

Molecular Formula

C4H10O2

Molecular Mass

90.12

Cite this Page

2,3-Butanediol.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=513-85-9 (retrieved 2025-03-29) (CAS RN: 513-85-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    91-91.5 °C @ Press: 23 Torr

  • Melting Point (2)

    7.6 °C

  • Density (2)

    1.0033 g/cm³ @ Temp: 20 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H10O2/c1-3(5)4(2)6/h3-6H,1-2H3

InChIKey

InChIKey=OWBTYPJTUOEWEK-UHFFFAOYSA-N

SMILES

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

Canonical SMILES

OC(C)C(O)C

Other Names for this Substance

  • 2,3-Butanediol
  • 2,3-Dihydroxybutane
  • Dimethylethylene glycol
  • 2,3-Butylene glycol
  • 1,2-Dimethyl-1,2-ethanediol

Deleted or Replaced CAS Registry Numbers

98923-25-2

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.