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3-methylpentane

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3-methylpentane

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Also known as 3-Methyl-pentane

3-Methylpentane is a branched alkane with the molecular formula C6H14. It is a structural isomer of hexane composed of a methyl group bonded to the third carbon atom in a pentane chain. It is of similar structure to the isomeric 2-methylpentane, which has the methyl group located on the second carbon of the pentane chain.

Chemical data

Formula
C6H14
Molecular weight
86.18 g/mol
IUPAC name
3-methylpentane
SMILES
CCC(C)CC
InChIKey
PFEOZHBOMNWTJB-UHFFFAOYSA-N
XLogP
3.2
Polar surface area
0 Ų
H-bond donors
0
H-bond acceptors
0
Formal charge
0

via PubChem

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Encyclopedic overview

2 sections
Contents
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3-Methylpentane is a branched alkane with the molecular formula C6H14. It is a structural isomer of hexane composed of a methyl group bonded to the third carbon atom in a pentane chain. It is of similar structure to the isomeric 2-methylpentane, which has the methyl group located on the second carbon of the 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 1.5 and 6% It has close research and motor octane numbers of 74.5 and 74.3.

Excerpted from Wikipedia’s “3-methylpentane” article, available under the CC BY-SA 4.0 licence.