Synonyms: 7,9a-Methano-9aH-cyclopenta[b]heptalene-2,11,11a,12(1H)-tetrol,dodecahydro-1,1-dimethyl-4,8-dimethylene-, (2S,3aS,4aS,7S,9aR,11R,11aR,12R)-(8CI); 7,9a-Methano-9aH-cyclopenta[b]heptalene,grayanotoxa-10(20),16-diene-3,5,6,14-tetrol deriv.; Grayanotoxin VIII