2 per day

Compound Class Suffix (IUPAC) Functional Group Name General Formula

Amine ‑amine Amino (–NH₂) (CnH2n+1)–NH₂

Amide ‑amide Amido (–CONH₂) (CnH2n+1)–CONH₂

Ether (alkoxy prefix) Alkoxy (–O–) (CnH2n+1)–O–(CnH2n+1)

Ketone ‑one Carbonyl (–C=O) (CnH2n+1)–CO–(CnH2n+1)