Molecular Weight of Carbon monoxide (CO)
Identification of Carbon monoxide Chemical Compound
| Chemical Formula | CO |
|---|---|
| Molecular Weight | 28.0101 g/mol |
| IUPAC Name | carbon monoxide |
| SMILES String | [C-]#[O+] |
| InChI | InChI=1S/CO/c1-2 |
| InChIKey | UGFAIRIUMAVXCW-UHFFFAOYSA-N |
Molecular Weight Description
The carbon monoxide molecule consists of 1 Carbon atom(s) and 1 Oxygen atom(s) - a total of 2 atom(s). The molecular weight of carbon monoxide is determined by the sum of the atomic weights of each constituent element multiplied by the number of atoms, which is calculated to be:
$$ 28.0101 · \frac{g}{mol} $$
The exact term of the above molecular weight is “molar mass”, which is based on the atomic mass of each element. Molecular weight is actually an older term of “relative molar mass” or “molecular mass”, which is a dimensionless quantity equal to the molar mass divided by the molar mass constant defined by 1 g/mol.
Molecular masses are calculated from the standard atomic weights of each nuclide, while molar masses are calculated from the atomic mass of each element. The atomic mass takes into account the isotopic distribution of the element in a given sample.
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Input example for Ethanol:
- Name: ethanol
- CAS #: 64-17-5
- Formula: C2H5OH
- Smiles: CCO
- InChI: InChI=1S/C2H6O/c1-2-3/h3H,2H2,1H3
- InChIKey: LFQSCWFLJHTTHZ-UHFFFAOYSA-N
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Additional Information for Identifying Carbon monoxide Molecule
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Structure Data File (SDF/MOL File) of carbon monoxide
The structure data file (SDF/MOL File) of carbon monoxide is available for download in the SDF page of carbon monoxide, which provides the information on atoms, bonds, connectivity and coordinates of carbon monoxide. The carbon monoxide structure data file can be imported to most of the chemistry-related software, providing three-dimensional visualization and further analysis.
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Chemical structure of carbon monoxide
The molecular structure image of carbon monoxide is available in chemical structure page of carbon monoxide, which provides the molecular geometry information, i.e., the spatial arrangement of atoms in carbon monoxide and the chemical bonds that hold the atoms together.
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Chemical formula of carbon monoxide
The molecular formula of carbon monoxide is given in chemical formula page of carbon monoxide, 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 carbon monoxide
In addition to the molecular weight information, the structural information of carbon monoxide in a textual expression is available via InChi. The full standard InChI of carbon monoxide is given below:
InChI=1S/CO/c1-2
It can provide a way to encode the molecular information of carbon monoxide 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 carbon monoxide is:
InChIKey=UGFAIRIUMAVXCW-UHFFFAOYSA-N
It may allow easier web searches for carbon monoxide. The InChIKey, however, needs to be linked to the full InChI as well in order to get back to the original structure of the carbon monoxide as the full standard InChI cannot be reconstructed from the InChIKey.
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Other names (synonyms) or registry numbers of carbon monoxide
There may be different names of the carbon monoxide compound depending on the various situations of industrial applications, which are given below including the registry numbers if available:
- 82063-46-5
- 807306-74-7
- 740776-49-2
- 724693-69-0
- 192819-80-0
- 18421-60-8
- 167416-30-0
- 162342-48-5
- 155399-52-3
- 153929-54-5
- Carbon monoxide, refrigerated liquid (cryogenic liquid) [NA9202] [Poison gas]
- Carbon monoxide, refrigerated liquid (cryogenic liquid) [NA9202] [Poison gas]
- Carbon monoxide, refrigerated liquid (cryogenic liquid)
- Carbon monoxide, compressed [UN1016] [Poison gas]
- Carbon monoxide, compressed [UN1016] [Poison gas]
- D09706
- 7U1EE4V452
- Carbon monoxide, compressed
- Carbon monoxide (USAN)
- Carbonous oxide
- C#O
- monoxide
- Carbon monoxide 10% by volume or more
- [CO]
- Carbonio (ossido di) [Italian]
- Carbone (oxyde de) [French]
- Oxyde de carbone [French]
- Wegla tlenek [Polish]
- Kohlenmonoxid [German]
- carbonyl
- Koolmonoxyde [Dutch]
- Kohlenoxyd [German]
- carbon(II) oxide
- Flue gas
- Exhaust gas
- Carbon oxide (CO)
- 630-08-0
- Carbonic oxide
- carbon monooxide
Carbon monoxide Identification Summary Frequently Asked Questions (FAQs)
| What’s the formula of carbon monoxide? |
|---|
| CO |
| How many atoms and what are the elements in the carbon monoxide molecule? |
| 2 atom(s) - 1 Carbon atom(s) and 1 Oxygen atom(s) |
| How many chemical bonds and what types of bonds are in the carbon monoxide structure? |
| 1 bond(s) - 1 non-H bond(s), 1 multiple bond(s), and 1 triple bond(s) |
| What’s the molar mass of carbon monoxide? |
| 28.0101 g/mol |
| What’s the SMILES format of carbon monoxide? |
| [C-]#[O+] |
| What’s the InChI format of carbon monoxide? |
| InChI=1S/CO/c1-2 |
| What’s the InChIKey string of carbon monoxide? |
| UGFAIRIUMAVXCW-UHFFFAOYSA-N |
3677
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).