Diethyl sulfoxide

CAS Registry Number®

70-29-1

CAS Name

Diethyl sulfoxide

Molecular Formula

C4H10OS

Molecular Mass

106.19

Cite this Page

Diethyl sulfoxide.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=70-29-1 (retrieved 2025-03-30) (CAS RN: 70-29-1).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    66-75 °C @ Press: 4 Torr

  • Melting Point (2)

    14 °C

  • Density (3)

    1.066 g/cm³ @ Temp: 25 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C4H10OS/c1-3-6(5)4-2/h3-4H2,1-2H3

InChIKey

InChIKey=CCAFPWNGIUBUSD-UHFFFAOYSA-N

SMILES

S(CC)(CC)=O

Canonical SMILES

O=S(CC)CC

Other Names for this Substance

  • Ethane, 1,1′-sulfinylbis-
  • Ethyl sulfoxide
  • 1,1′-Sulfinylbis[ethane]
  • Diethyl sulfoxide
  • Diethyl sulphoxide

View All

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.