Acetyl group | 食品添加物合法業者資訊網

Theacetylgroupcontainsamethylgroupsingle-bondedtoacarbonyl.Thecarbonylcenterofanacylradicalhasonenonbondedelectronwithwhichitforms ...

Chemical group, –C(=O)CH₃

Chemical compound

In organic chemistry, an acetyl group is a functional group denoted by the chemical formula −COCH3 and the structure −C(=O)−CH3. It is sometimes represented by the symbol Ac[5][6] (not to be confused with the element actinium). In IUPAC nomenclature, an acetyl group is called an ethanoyl group.

An acetyl group contains a methyl group (−CH3) that is single-bonded to a carbonyl (C=O), making it an acyl group. The carbonyl center of an acyl radical has one non-bonded electron with which it forms a chemical bond to the remainder (denoted with the letter R) of the molecule.

The acetyl moiety is a component of many organic compounds, including acetic acid, the neurotransmitter acetylcholine, acetyl-CoA, acetylcysteine, acetaminophen (also known as paracetamol), and acetylsalicylic acid (also known as aspirin).

The process of adding an acetyl group into a molecule is called acet...