1-Bromopentane or amyl bromide is a bromoalkane and isomer of bromopentane.

It is found as a natural product in Fucus vesiculosus.

[1] Most 1-bromoalkanes are prepared by free-radical addition of hydrogen bromide to the 1-alkene, which is 1-pentene in the case of 1-bromopentane.

These conditions lead to anti-Markovnikov addition, giving the 1-bromo derivative.

[2] It is also formed by the reaction of 1-pentanol with hydrogen bromide.