Synonyms: 7,9a-Methano-9aH-cyclopenta[b]heptalene-2,11,11a,12(1H)-tetrol,2,3,3a,4,4a,5,6,7,10,11-decahydro-1,1,8-trimethyl-4-methylene-,(2S,3aS,4aS,7S,9aS,11R,11aR,12R)- (8CI);7,9a-Methano-9aH-cyclopenta[b]heptalene,grayanotoxa-10(20)-15-diene-3,5,6,14-tetrol deriv.; Grayanotoxin VII