Answer
The IUPAC name of the compound is $5-hydroxyhexanoic\hspace1mm acid \hspace1mm lactone$. The common name of the compound is $δ-caprolactone$
Work Step by Step
The compound is a lactone consisting of 6 carbon atoms and a hydroxy group at position 5. The IUPAC name of the compound is $5-hydroxyhexanoic\hspace1mm acid \hspace1mm lactone$. The common name of the compound is $δ-caprolactone$