Sulfur dioxide

CAS Registry Number®

7446-09-5

CAS Name

Sulfur dioxide

Molecular Formula

O2S

Molecular Mass

64.06

Cite this Page

Sulfur dioxide.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=7446-09-5 (retrieved 2024-11-21) (CAS RN: 7446-09-5).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    -10.05 °C

  • Melting Point (1)

    -75.5 °C

  • Density (1)

    2.811 x 10-3 g/cm³

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/O2S/c1-3-2

InChIKey

InChIKey=RAHZWNYVWXNFOC-UHFFFAOYSA-N

SMILES

S(=O)=O

Canonical SMILES

O=S=O

Other Names for this Substance

  • Sulfur dioxide
  • Sulfur superoxide
  • Sulfurous acid anhydride
  • Sulfurous anhydride
  • Sulfurous oxide

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Deleted or Replaced CAS Registry Numbers

8014-94-6, 12396-99-5, 83008-56-4, 89125-89-3, 1239882-82-6

CAS INSIGHTSTM
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