- The prefix of the names of straight-chained alkanols denotes the number of carbon atoms in the chain:
- All straight-chained alkanols have the suffix ‘-anol’:
- ‘an’ denotes all single bonds between carbon atoms.
- ‘ol’ denotes the presence of a hydroxy (OH) group.
- When there is more than one possible position for the hydroxy group, a number denotes which carbon atom has the hydroxy group attached.
- Examples include methanol (CH3OH) and 2-butanol (CH3CHOHCH2CH3).
Above: Structures of Methanol and Ethanol;
Below: Structures of Propanol and Butanol