# Carbonyl --- **Carbonyl** (—CO) is a [[functional group]] consisting of a carbon double bonded to an oxygen. This bond is also found in other functional groups, such as [[carboxyl group]], which is really just a carbonyl and a [[hydroxyl]] sharing a carbon atom. ![[carbonyl.png]] Is this the same thing as a [[ketones|ketone]] or an [[ketones|aldehyde]]. ___