The alklaloid conaconitine (I), and N,N-bis(methylcarbamyl)-methylamine, tris(methylcarbamyl)amine, 1-(1-bromoethyl)-4-(1,2-dibromoethyl)benzene and the known compound p-bis(1,2-dibromoethyl)benzene were isolated from the roots of Aconitum. This is the first report of these compounds from a natural source. Their structures were established on the basis of spectral anal. (UV, IR, MS, 1H and 13C NMR).

Key words: ULTRAVIOLET SPECTROPHOTOMETRY, INFRARED SPECTROPHOTOMETRY, MASS SPECTROGRAPHY, C13 NMR SPECTROMETRY, BROMINE COMPOUNDS, BENZENE P, PROTON MAGNETIC RESONANCE SPECTROMETRY, ACONITUM, RANUNCULACEAE, CHEMICAL COMPOSITION