12-Hydroxy-5,9,13-trimethyl-16-methylene-4,14-dioxatricyclo[11.3.2.0~3,5~]octadec-8-en-15-one 56326-25-1 AIDS-128540 AIDS128540 NSC285705 Sinulariolide {4,14-Dioxatricyclo[11.3.2.03,} 5\]octadec-8-en-15-one, 12-hydroxy-5,9,13-trimethyl-16-methylene-, {[1R-(1R*,3S*,5S*,8E,12S*,13R*)]-}