sec-Butylamine is an organic chemical compound (specifically, an amine) with the formula CH<sub>3</sub>CH<sub>2</sub>CH(NH<sub>2</sub>)CH<sub>3</sub>. It is a colorless liquid. sec-Butylamine is one of the four isomeric amines of butane, the others being n-butylamine, tert-butylamine, and isobutylamine. sec-Butylamine is chiral and therefore can exist in either of two enantiomeric forms.
sec-Butylamine is used in the production of some pesticides.
The (rat) for primary alkylamines is on the order of 100 â 1,000 mg/kg.