In organic chemistry,<unk>  (ethanoyl), is a functional group, the acyl of acetic acid, with chemical formula -COCH3. It is sometimes abbreviated as Ac (not to be confused with the element actinium). The<unk>  radical contains a methyl group single-bonded to a carbonyl. The carbon of the carbonyl has a lone electron available, with which it forms a chemical bond to the remainder R of the molecule.
The<unk>  radical is a component of many organic compounds, including the neurotransmitter<unk> choline, and<unk> -CoA, and the analgesics acetaminophen and<unk> salicylic acid (better known as aspirin).
Acetyl
Acyl
Carbonyl
Oxamyl
Carbide
Coenzyme
Bromide
Benzyl