WHAT IS THE NAME OF THIS COMPOUND:CH3CH(CH3)CH2CH2OH?

British IUPAC name: 3-methylbutan-1-ol
U.S. IUPAC name: 3-methyl-1-butanol

Note that there is NEITHER SPACE, " ", NOR HYPHEN, "-", between "methyl" and "butan".

Trivial name: isopentanol, isoamyl alcohol, isopentyl alcohol

3-methyl butanol

3-methyl-butan-1-ol

3-methyl butan

isoamyl alcohol.