CH2CH2CH2
CH2CH2CH2 is a chemical shorthand used to denote a structural fragment consisting of three linked methylene (CH2) units. In practice, it is not a standalone, isolable molecule but a motif found within larger organic compounds. As a fragment, it represents a three-carbon portion of a carbon chain.
When attached as a substituent in a larger molecule, the fragment commonly corresponds to the n-propyl group,
Chemically, CH2 groups are aliphatic methylenes. Their presence influences properties such as hydrophobicity and flexibility in
Related topics include the broader concepts of alkyl groups, isomerism among C3H6 species (for example propene