Synonyms: 7H-8,15b-Methano-1H,3H,12H-benzo[de]cyclohepta[1,2-g:3,4,5-d'e']bis[2]benzopyran-3,7,12,15(8H)-tetrone,4,11,16-trihydroxy-6,9-dimethyl-, [8R-(8a,15ba,16S*)]- (8CI); Neoclauxin (7CI);7,13-Methano-5H-benzo[4,5]cyclohepta[1,2-a]naphthalene-4,8-dicarboxylic acid,6,7,12,13-tetrahydro-3,9,14-trihydroxy-7-(hydroxymethyl)-5-(hydroxymethylene)-1,11-dimethyl-,di-d-lactone