Seven new compounds were identified in the secretion collected from the stinger apparatus of little black ants, Monomorium minimum.
Two diterpenes, β-springene and neocembrene, were found only in Dufour's glands of queens.
First report on the natural occurrence of 9-decenyl-1-amine, N-methylenedecan-1-amine, and N-methyllenedodecan-1-amine.