The IUPAC name for the compound 2-methylpentane is 2-methylpentane itself.
Understanding 2-Methylpentane
2-Methylpentane is an organic compound that belongs to the alkane family, specifically a branched-chain alkane. It is an isomer of hexane, meaning it shares the same chemical formula (C₆H₁₄) but has a different structural arrangement.
IUPAC Nomenclature and Other Names
According to the International Union of Pure and Applied Chemistry (IUPAC), the systematic name for this compound is indeed 2-methylpentane. This name precisely describes its molecular structure: a five-carbon main chain, which is indicated by "pentane," with a methyl group (-CH₃) attached to the second carbon atom of that main chain.
In addition to its IUPAC designation, 2-methylpentane is also known by its common name, isohexane.
Key Information Summary
To provide a comprehensive overview, here's a summary of its naming and identification details:
Category | Detail |
---|---|
Preferred IUPAC Name | 2-Methylpentane |
Other Names | Isohexane |
CAS Number | 107-83-5 |
Chemical Structure and Properties
2-Methylpentane has the chemical formula C₆H₁₄. Its structure can be visualized as a linear pentane chain (CH₃-CH₂-CH₂-CH₂-CH₃) where one hydrogen atom on the second carbon is replaced by a methyl group (CH₃). This branching affects its physical properties compared to its straight-chain isomer, n-hexane. At room temperature, 2-methylpentane is a colorless liquid and is known for being flammable.