Molecular Weight of Oxygen (O2)

Molecular Weight Description

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Additional Information for Identifying Oxygen Molecule

• Structure Data File (SDF/MOL File) of Oxygen

  The structure data file (SDF/MOL File) of Oxygen is available for download in the SDF page of Oxygen, which provides the information on atoms, bonds, connectivity and coordinates of Oxygen. The Oxygen structure data file can be imported to most of the chemistry-related software, providing three-dimensional visualization and further analysis.

• Chemical structure of Oxygen

  The molecular structure image of Oxygen is available in chemical structure page of Oxygen, which provides the molecular geometry information, i.e., the spatial arrangement of atoms in Oxygen and the chemical bonds that hold the atoms together.

• Chemical formula of Oxygen

  The molecular formula of Oxygen is given in chemical formula page of Oxygen, which identifies each constituent element by its chemical symbol and indicates the proportionate number of atoms of each element.

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• InChI (IUPAC International Chemical Identifier) information of Oxygen

  In addition to the molecular weight information, the structural information of Oxygen in a textual expression is available via InChi. The full standard InChI of Oxygen is given below:

  InChI=1S/O2/c1-2

  It can provide a way to encode the molecular information of Oxygen to facilitate the search for the compound information in databases and on the web.

  The condensed, 27 character standard InChIKey (hashed version of the full standard InChI) of Oxygen is:

  InChIKey=MYMOFIZGZYHOMD-UHFFFAOYSA-N

  It may allow easier web searches for Oxygen. The InChIKey, however, needs to be linked to the full InChI as well in order to get back to the original structure of the Oxygen as the full standard InChI cannot be reconstructed from the InChIKey.

• Other names (synonyms) or registry numbers of Oxygen

  There may be different names of the Oxygen compound depending on the various situations of industrial applications, which are given below including the registry numbers if available:

  • 80937-33-3
  • 80217-98-7
  • 14797-70-7
  • 1338-93-8
  • Oxygen, refrigerated liquid (cryogenic liquid) [UN1073] [Nonflammable gas]
  • AQUANAL(TM)-plus oxygen (O2) 1-12 mg/L, test set with color comparator
  • AQUANAL(TM)-plus oxygen (O2) 1-12 mg/L, refill pack for 37428
  • Oxygen 4c21e554-d402-480d-896d-8185c05c7863
  • (O2)(2.)
  • (O2)(..)

  • Oxygen, compressed [UN1072] [Nonflammable gas]
  • AQUANAL™-plus oxygen (O2) 1-12 mg/L
  • Oxygen, refrigerated liquid (cryogenic liquid)
  • O2(2.)
  • D00003
  • E-948
  • E 948
  • (1)O2
  • Oxygen, Messer(R) CANGas, 99.999%
  • UN 1073

  • UN 1072
  • S88TT14065
  • Southern Medical Oxygen, Compressed
  • Compressed gas, oxidizing, n.o.s.
  • Oxygen (family 1st Medical)
  • Compressed Gas Oxidizing,N.O.S.
  • HMDB01377
  • Emergency Oxygen Supply 99.5%
  • Oxygen, >=99.998%
  • Oxygen 64889-0001

  • Oxygen Helium Mixture 30/70
  • Oxygen Helium Mixture 20/80
  • [OO]
  • Oxygen USP - Gas 100%
  • Oxygen, Compressed U.S.P.
  • Oxygen, >=99.6%
  • Oxygen, Refrigerated Liquid
  • Oxygen Compressed U.S.P.
  • Air Compressed Medical Air
  • Oxygen Refrigerated Liquid

  • Oxygen-refrigerated Liquid
  • dioxygen(2.) (triplet)
  • Oxygen 99.95%
  • Oxygen (JP17/USP)
  • Oxygen 99.0%
  • Oxygen (93%)
  • oxygen O2, orthorhombic
  • Oxygen (8CI,9CI)
  • Oxyfit Gas 99.5%
  • Medical Oxygen 100%

  • triplet molecular oxygen
  • singlet molecular oxygen
  • Oxygen-nitrogen Mixture
  • Oxygen 100%
  • Oxygen USP 99%
  • Oxygen 99% USP
  • Madacylinder 99.5%
  • Oxygen 99%
  • Ez-OX
  • Oxygen U.S.P.

  • Oxygen Compressed Gas
  • Oxygen-helium Mixture
  • Oxygen Gas 99%
  • Oxygene - Gas Inh
  • Oxygen, Refrigerated
  • Oxygen (compressed)
  • Prairie Oxygen USP
  • Ez-OX Plus
  • Compressed Oxidizing
  • Oxygen, USP

  • Oxygen USP
  • Oxygen Compressed
  • Tri-med Medical
  • Medical Air
  • Air, compressed
  • triplet dioxygen
  • singlet dioxygen
  • Medical Oxygen
  • Air Compressed
  • Peroxy radical

  • oxygen monoxide
  • Disauerstoff
  • dioxygene
  • dioxidanediyl
  • Oxygen, refrigerated liquid (cryogenic liquid) [UN1073] [Nonflammable gas]
  • Compressed oxygen
  • Dioxygenyl ion
  • OXY
  • Oxygen, compressed [UN1072] [Nonflammable gas]
  • E948

  • O2
  • Oxygen, compressed
  • Oxigeno [Spanish]
  • Oxygene [French]
  • Oxygen-16
  • oxygene
  • Oxygenium medicinale
  • Oxygen, liquified
  • Oxygen (liquid)
  • Sauerstoff

  • Oxygenium
  • Hyperoxia
  • 7782-44-7
  • Pure oxygen
  • Dioxygen
  • Molecular oxygen
  • oxygen molecule
  • Liquid oxygen

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Oxygen Identification Summary Frequently Asked Questions (FAQs)

What’s the formula of Oxygen?
O2
How many atoms and what are the elements in the Oxygen molecule?
2 atom(s) - 2 Oxygen atom(s)
How many chemical bonds and what types of bonds are in the Oxygen structure?
1 bond(s) - 1 non-H bond(s), 1 multiple bond(s), and 1 double bond(s)
What’s the molar mass of Oxygen?
31.9988 g/mol
What’s the SMILES format of Oxygen?
O=O
What’s the InChI format of Oxygen?
InChI=1S/O2/c1-2
What’s the InChIKey string of Oxygen?
MYMOFIZGZYHOMD-UHFFFAOYSA-N

3342 The contents of this page can freely be shared if cited as follows:
Source: Chemical Compounds Deep Data Source (CCDDS; https://www.molinstincts.com) based on 41 patented QSQN and QN technology
commercialized into Mol-Instincts database and ChemRTP, ChemEssen, Inc (2024).