Answer:
The IUPAC name is:
4-methyl pentanoic acid
Explanation:
4-Methylpentanoic acid is actually a carboxylic acid. It has five carbons and there is a methyl substitution which is at the fourth carbon.
Molecular Formula: [tex]C_{6}H_{12}O_{2}[/tex]
The acid is known to be a metabolite of 20 alpha-hydroxyl cholesterol. From the excerpt, the acid is a branched-chain and also known as a saturated fatty acid. It is known to be a conjugate acid of an isocaproate.
Other names for the acid are also called 4-methylvaleric acid or isocaproic acid.