1-Amino-2-methylpropane 1-Propanamine, 2-methyl- 2-Methylpropylamine 3-Methyl-2-propylamine 78-81-9 AI3-24039 CCRIS 6250 EINECS 201-145-4 HSDB 612 I-Butylamine ISOBUTYLAMINE Isobutylamine [UN1214] [Flammable liquid] Monoisobutylamine NSC 8028 UN1214 Valamine iso-Butylamine