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Amides are named according to the same system as other organic compounds, with the suffix-amide used to designate the presence in the molecule of an amide group. The first step is to consider the number of carbon atoms forming a chain.
Amides are derived from carboxylic acids. A carboxylic acid contains the \(-COOH\) functional group, and in an amide the \(-OH\) part of that group is replaced by an \(-NH_2\) group. So, amides contain the \(-CONH_2\) group. The amide linkage has some interesting properties that may not be obvious from other chemical classes.