Synonyms: 1,2-Dioxin-3-aceticacid, 3,6-dihydro-6-methoxy-6-(14,16-octadecadienyl)-, methyl ester, [3a,6b,6(14E,16E)]-(+)-; 1,2-Dioxin-3-acetic acid,3,6-dihydro-6-methoxy-6-(14E,16E)-14,16-octadecadienyl-, methyl ester,(3R,6S)-rel-(+)- (9CI); Xestin B