A new germacranolide has been isolated from the acetone extract of Bla
invillea latifolia along with a known sesquiterpene lactone. The struc
ture of the new compound has been established by spectral methods and
chemical correlation with 10-acetoxymethyl-9 beta-hydroxy-8 beta-(2-me
thylbutyryloxy)-germacradien-6,7-olide.