Oxygen

CAS Registry Number®

7782-44-7
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CAS Name

Oxygen

Molecular Formula

O2

Molecular Mass

32.00

Cite this Page

Oxygen.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=7782-44-7 (retrieved 2024-07-12) (CAS RN: 7782-44-7).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    -182.96 °C
  • Melting Point (1)

    -218.4 °C
  • Density (2)

    3.419 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/O2/c1-2

InChIKey

InChIKey=MYMOFIZGZYHOMD-UHFFFAOYSA-N

SMILES

O=O

Canonical SMILES

O=O

Other Names for this Substance

  • Oxygen
  • Oxygen molecule
  • Molecular oxygen
  • Dioxygen
  • Phoenix I 2 A 7

Deleted or Replaced CAS Registry Numbers

1338-93-8, 14797-70-7, 80217-98-7, 80937-33-3, 1053656-93-1, 1173018-52-4, 1397194-37-4