Tabell 7: Tillatte trivialnavn på noen hydrokarbongrupper.
| Formel | Navn |
| -CH2- | metylen |
| -CH2-CH2- | etylen |
| CH2=CH- | vinyl |
| CH2=CH-CH2- | allyl |
| C6H5- | fenyl |
| -C6H4- | fenylen |
| C6H5-CH2- | benzyl |
| C6H5-CH=CH- | styryl |
| (CH3)2CH- | isopropyl |
| (CH3)2CH-CH2- | isobutyl |
| CH3-CH2-CH(CH3)- | sec-butyl |
| (CH3)3C- | tert-butyl |