1-Bromo-3-chloropropane is an organohalogen compound with the formula Br(CH2)3Cl.

It is a colorless liquid, produced by free-radical addition of hydrogen bromide to allyl chloride.

[1] It is used as an alkylating agent to install the –(CH2)3Cl[2] [3] and –(CH2)3– groups.

[4] For example, it is a precursor to 4-chlorobutyronitrile.