2-Methylpentane

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[4] and European[5] gasoline in small amounts, and by 2011 its share in US gas varied between 2 and 8%.

[6] 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.

This article about a hydrocarbon is a stub.

Skeletal formula of 2-methylpentane
Skeletal formula of 2-methylpentane
NFPA 704 four-colored diamond Health 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroform Flammability 3: Liquids and solids that can be ignited under almost all ambient temperature conditions. Flash point between 23 and 38 °C (73 and 100 °F). E.g. gasoline Instability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogen Special hazards (white): no code