1-Bromopropane (also known as n-propyl bromide or nPB) is a bromoalkane with the chemical formula CH3CH2CH2Br. It is a colorless, flammable liquid that is used as a solvent. It has a characteristic hydrocarbon odor. Its industrial applications increased dramatically in the 21st century due to the phasing out of chlorofluorocarbons and chloroalkanes such as 1,1,1-trichloroethane under the Montreal Protocol. It was also used as a dry cleaning solvent as a substitute for perchloroethylene for a short time in the United States. 1-Bromopropane is highly neurotoxic to humans.
