| Atomic grouping |
 |
| Suffix | -one |
| Prefix | oxo |
| Position in chain | anywhere except at
end of chain |
| General formula |
CnH2nO |
| Common family name |
ketone |
Note: since the suffix (-one) has an initial vowel, the terminal -e of the alkane name is
dropped before the suffix is added, even if a locant is placed immediately
before the suffix.
Examples :
| Structure | IUPAC Name | Model |
|---|
 |
propanone (aka acetone) |
|
 |
butanone |
|
 |
pentan-2-one |
|
 |
3,5-dimethylheptan-4-one |
|
 |
cyclohexanone |
|
 |
bicyclo[2.2.1]heptan-2-one |
|
 |
1-cyclohexylpentan-1-one |
|
 |
heptane-3,5-dione |
|
 |
4-ethyl-4-hydroxyhexan-2-one |
|
 |
(E)-pent-3-en-2-one |
|
|