Synonyms: 1,5-Cyclononadiene-1,2,5,6-tetracarboxylic1,2:5,6-dianhydride,3-hydroxy-4-(1-hydroxyheptyl)-8-[hydroxy(tetrahydro-6-oxo-2H-pyran-2-yl)methyl]-(8CI); 1H-Cyclonona[1,2-c:5,6-c']difuran-1,3,6,8(4H)-tetrone, 5,9,10,11-tetrahydro-4-hydroxy-5-(1-hydroxyheptyl)-10-[hydroxy(tetrahydro-6-oxo-2H-pyran-2-yl)methyl]-,[4R*,5S*(R*),10S*[S*(S*)]]-; Dihydrorubratoxin B