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  2. Methyl group - Wikipedia

    en.wikipedia.org/wiki/Methyl_group

    In organic chemistry, a methyl group is an alkyl derived from methane, containing one carbon atom bonded to three hydrogen atoms, having chemical formula CH 3 (whereas normal methane has the formula CH 4). In formulas, the group is often abbreviated as Me. This hydrocarbon group occurs in many organic compounds. It is a very stable group in ...

  3. Alkyl group - Wikipedia

    en.wikipedia.org/wiki/Alkyl_group

    A cycloalkyl group is derived from a cycloalkane by removal of a hydrogen atom from a ring and has the general formula −C n H 2n−1. [2] Typically an alkyl is a part of a larger molecule. In structural formulae, the symbol R is used to designate a generic (unspecified) alkyl group. The smallest alkyl group is methyl, with the formula −CH 3 ...

  4. Functional group - Wikipedia

    en.wikipedia.org/wiki/Functional_group

    Chemical class Group Formula Structural formula Prefix Suffix Example haloalkane: halo: RX halo-alkyl halide: Chloroethane (Ethyl chloride) fluoroalkane: fluoro: RF fluoro-alkyl fluoride: Fluoromethane (Methyl fluoride) chloroalkane: chloro: RCl chloro-alkyl chloride

  5. 2-Methylpentane - Wikipedia

    en.wikipedia.org/wiki/2-Methylpentane

    2-Methylpentane, trivially known as isohexane, is a branched-chain alkane with the molecular formula C 6 H 14.It is a structural isomer of hexane composed of a methyl group bonded to the second carbon atom in a pentane chain.

  6. Skeletal formula - Wikipedia

    en.wikipedia.org/wiki/Skeletal_formula

    The skeletal formula of the antidepressant drug escitalopram, featuring skeletal representations of heteroatoms, a triple bond, phenyl groups and stereochemistry. The skeletal formula, line-angle formula, bond-line formula or shorthand formula of an organic compound is a type of molecular structural formula that serves as a shorthand representation of a molecule's bonding and some details of ...

  7. 3-Methylpentane - Wikipedia

    en.wikipedia.org/wiki/3-Methylpentane

    3-Methylpentane is a branched alkane with the molecular formula C 6 H 14. 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.

  8. Substituent - Wikipedia

    en.wikipedia.org/wiki/Substituent

    In a chemical structural formula, an organic substituent such as methyl, ethyl, or aryl can be written as R (or R 1, R 2, etc.) It is a generic placeholder, the R derived from radical or rest , which may replace any portion of the formula as the author finds convenient.

  9. Methylene group - Wikipedia

    en.wikipedia.org/wiki/Methylene_group

    The group may be represented as −CH 2 − or >CH 2, where the '>' denotes the two bonds. This stands in contrast to a situation where the carbon atom is bound to the rest of the molecule by a double bond, which is preferably called a methylidene group, represented =CH 2. [2] Formerly the methylene name was used for both isomers.