Acetyl
From Wikinfo
Acetyl is the radical of acetic acid. It contains a methyl group single-bonded to a carbonyl. The carbon of the carbonyl has a bond available to the remainder of the molecule. The chemical formula is
O=C- | CH3
References
- Adapted from the Wikipedia article, "Acetyl" http://en.wikipedia.org/wiki/Acetyl, used under the GNU Free Documentation License

