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acetyl group

acetyl group

7.2
A small chemical part with atoms CH3CO that attaches to other molecules
  • noun
  • /əˈsiːtəl ɡruːp/
  • Specialized
translation icon : grupo acetilo
  • Adding an acetyl group to the compound changes its properties.

Examples

  • Enzymes often transfer an acetyl group during metabolic reactions.

  • The acetyl group is commonly found in many biological molecules.

  • The acetyl group is essential in organic chemistry.

  • Many drugs contain an acetyl group in their structure.

  • An acetyl group is often added during chemical reactions to modify the properties of organic compounds.

  • In biochemistry, the addition of an acetyl group to a molecule can significantly impact its function.

  • The presence of an acetyl group in a molecule can enhance its solubility in organic solvents.

Synonyms

acetyl
vsacetyl group
  • Specialized
1 9.3

A small chemical group made from acetic acid that attaches to other molecules

is the specific term for that acetic-acid derived group
ethanoyl group
vsacetyl group
  • Specialized
7.5

A small part of a molecule with formula CH3CO that changes how the molecule reacts, also called an acetyl group

is the same functional group but named differently
ethanoyl radical
vsacetyl group
  • Specialized
9.9

A part of a molecule used in chemistry, formed from the acid in vinegar, written CH3CO

is the common name used in ordinary chemical contexts
acetyl radical
vsacetyl group
  • Specialized
7.9

A small group of atoms from acetic acid that can attach to other molecules

is the same functional group but not emphasising its radical state

Surface Forms

acetyl group singular
acetyl groups plural

Morphology

acetyl + group

This is a straightforward compositional technical noun phrase: 'acetyl' names a residue derived from acetic acid and 'group' denotes a bonded assembly of atoms, so the combined meaning 'the CH₃CO– functional group' is directly derivable from the constituents. Although domain-specific, the noun+noun chemistry naming pattern is regular (and parallels forms in other languages), so a learner who knows both constituent meanings will understand the MWE.

Etymology

The name acetyl group comes from acetyl, from the word 'acetic' meaning the acid in vinegar, and group, meaning a small part that attaches to a molecule. Imagine a tiny piece like vinegar sticking to a larger molecule and changing how it behaves, and that's why adding an acetyl group often changes a compound's properties.