Cyclobutane
Cyclobutane is a cycloalkane organic compound with the formula (CH2)4. At room temperature, it is a colorless gas. Cyclobutane is usually sold as a liquified gas (a gas that has been turned into a liquid). Variants of cyclobutane are called cyclobutanes. Cyclobutane has no uses in commerce or biology,[1] but compounds containing cyclobutane are important in biology and biotechnology.
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| Names | |||
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| Preferred IUPAC name
Cyclobutane | |||
| Identifiers | |||
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3D model (JSmol) |
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| Beilstein Reference | 1900183 | ||
| ChEBI | |||
| ChemSpider | |||
| ECHA InfoCard | 100.005.468 | ||
| EC Number |
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| Gmelin Reference | 81684 | ||
PubChem CID |
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| UNII | |||
| UN number | 2601 | ||
CompTox Dashboard (EPA) |
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SMILES
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| Properties | |||
| C4H8 | |||
| Molar mass | 56.107 g/mol | ||
| Appearance | Colorless gas | ||
| Density | 0.720 g/cm3 | ||
| Melting point | −91 °C (−132 °F; 182 K) | ||
| Boiling point | 12.5 °C (54.5 °F; 285.6 K) | ||
| Hazards | |||
| NFPA 704 |
4
1
0
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |||
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Structure
The carbon atoms within cyclobutane are at odd angles. Cyclobutane is unstable and will break at temperatures over about 500 °C.
Cyclobutanes in biology and biotechnology
Cyclobutane is mostly found in nature, connected to itself in a ladder-like structure, such as in pentacycloanammoxic acid. This compound is a ladderane made up of five connected cyclobutane units.
References
- "Cyclobutane - an overview | ScienceDirect Topics". www.sciencedirect.com. Retrieved 2022-03-29.
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