8alpha-(4'-acetoxymethacryloyloxy)-3alpha,9beta-dihydroxy-1(10)E,4Z,11(13)-germacratrien-12,6alpha-olide
8alpha-(4'-acetoxymethacryloyloxy)-3alpha,9beta-dihydroxy-1(10)e,4z,11(13)-germacratrien-12,6alpha-olide