1. Carboxylic Acid

- RCO2H
- alkanoic acid (suffix)
- carboxy (prefix)
2. Anhydride

- alkanoic anhydride (suffix)
- no prefix
3. Ester

- alkyl' alkanoate (suffix)
- no prefix
4. Acyl Halide

- alkanoyl halide (suffix)
- no prefix
5. Amide

- alkanamide (suffix)
- carbamoyl (prefix)
6. Nitrile

- alkanitrile (suffix)
- cyano (prefix)
7. Aldehyde

- alkanal (suffix)
- alkanoyl (prefix)
8. Ketone

- alkanone (suffix)
- oxo (prefix)
9. Alcohol

- ROH
- alkanol (suffix)
- alkoxy (prefix)
10. Thiol

- RSH
- alkanethiol (suffix)
- thioalkoxy (prefix)
11. Amine

- RNH2, R2NH, R3N
- alknamine (suffix)
- amino (prefix)
12. Ether

- ROR'
- alkyl, alkyl' ether (suffix)
- alkoxy (prefix)
13. Sulfide

- RSR'
- alkyl, alkyl' sulfide (suffix)
- thioalkoxy (prefix)
14. Alkene

- >C=C<
- alkene (suffix)
- alkenyl (prefix)
15. Alkyne

- R-C=-CH
- alkyne (suffix)
- alkynyl (prefix)
16. Halide

- R-X
- halo-alkane (alkyl halide) (suffix)
- halo (prefix)
17. Nitro

- RNO2
- nitroalkane (suffix)
- nitro (prefix)
18. Alkane

- RH(+ cyclo)
- alkane (suffix)
- alkyl (prefix)