1-BROMO-3-METHYLBUTANE 1-Bromo-3-methylbutane [UN2341] [Flammable liquid] 107-82-4 3-Methylbutyl bromide 4-Bromo-2-methylbutane Butane, 1-bromo-3-methyl- EINECS 203-522-9 Isoamyl bromide Isobutylmethyl bromide Isopentyl bromide NSC 9240 UN2341