10-((3,6-Dihydro-6-oxo-2H-pyran-2-yl)hydroxymethyl)-4,5,8,9,10,11-hexahydro-4,8-dihydroxy-5-(1-hydroxyheptyl)-1H-cyclonona(1,2-c:5,6-c')difuran-1,3,6-trione 1H-Cyclonona(1,2-c:5,6-c')difuran-1,3,6-trione, 10-((3,6-dihydro-6-oxo-2H-pyran-2-yl)hydroxymethyl)-4,5,8,9,10,11-hexahydro-4,8-dihydroxy-5-(1-hydroxyheptyl)- 1H-Cyclonona(c)furan-6,7-dicarboxylic anhydride, 9-((3,6-dihydro-6-oxo-2H-pyran-2-yl)hydroxymethyl)-3,4,5,8,9,10-hexahydro-1,5-dihydroxy-4-(1-hydroxyheptyl)-3-oxo- 22467-31-8 5-19-08-00329 (Beilstein Handbook Reference) BRN 1633008 HSDB 3532 RUBRATOXIN A