Abstract The stem wood oil of Vanillosmopsis erythropappa Schultz-Bip. was analyzed using GC/MS. Forty-three constituents were identified: 31 sesquiterpenoids, one phenylpropane and 11 others. 2-Bisabolene-7, 11-diol and 10-bisabolene-3,7-diol were found for the first time in nature and were characterized using 1H-, 13C-NMR, GC/FTIR and GC/MS analyses. Key Word Index: Vanillosmopsis erythropappa Schultz-Bip.Asteraceaeessential oil composition2-bisabolene-7,11-diol10-bisabolene-3,7-diol(â)-Î±-bisabolol