Here's a breakdown of the structure:

* CH3: Represents a methyl group (one carbon atom with three hydrogen atoms attached).

* CH2: Represents a methylene group (one carbon atom with two hydrogen atoms attached).

* CHOH: Represents a hydroxymethyl group (one carbon atom with one hydrogen atom, one hydroxyl group (OH) attached).

* CH2CH2CH3: Represents a propyl group (three carbon atoms with hydrogen atoms attached).

Putting it all together:

* The molecule has seven carbon atoms in a chain.

* There is a hydroxyl group (OH) attached to the first carbon atom in the chain.

Therefore, this molecule is a straight-chain alcohol with seven carbon atoms and a hydroxyl group on the first carbon. This is the definition of 1-heptanol.