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2-methylpentane
Sign in to saveAlso known as 2-Methyl-pentane, 2-Methylpentan, Isohexane
2-Methylpentane, trivially known as isohexane, is a branched-chain alkane with the molecular formula C6H14. It is a structural isomer of hexane composed of a methyl group bonded to the second carbon atom in a pentane chain.
Chemical data
- Formula
- C6H14
- Molecular weight
- 86.18 g/mol
- IUPAC name
- 2-methylpentane
- SMILES
- CCCC(C)C
- InChIKey
- AFABGHUZZDYHJO-UHFFFAOYSA-N
- XLogP
- 3.2
- Polar surface area
- 0 Ų
- H-bond donors
- 0
- H-bond acceptors
- 0
- Formal charge
- 0
via PubChem
Wikidata facts
- Mass
- 86.11
Show 8 more facts
- found in taxon
- tomato
- boiling point
- 60.26
- melting point
- -153.7
- canonical SMILES
- CCCC(C)C
- NIOSH Pocket Guide ID
- 0323
- chemical formula
- C₆H₁₄
- Commons category
- Isohexane
- ionization energy
- 10.12
via Wikidata · CC0
~1 min read
Encyclopedic overview
2 sectionsContents
- See also
- References
2-Methylpentane, trivially known as isohexane, is a branched-chain alkane with the molecular formula C6H14. It is a structural isomer of hexane composed of a methyl group bonded to the second carbon atom in a pentane chain.
As of early 1990s, it was present in American and European gasoline in small amounts, and by 2011 its share in US gas varied between 2 and 8%. Using a quantitative structure-activity relationship (QSAR) prediction model, 2-Methylpentane has a research octane number (RON) of 75, motor octane number (MON) of 77, and cetane number (CN) of 29.
Excerpted from Wikipedia’s “2-methylpentane” article, available under the CC BY-SA 4.0 licence.