Synonyms: 1H-Cyclohepta[1,2-a:5,4-a']dinaphthalene-3,11(2H,4H)-dione,4a,5,6,6a,7,8,9,9a,10,12,13,13a,14,15,15a,15b-hexadecahydro-4,4,6a,10,10,13a,15b-heptamethyl-,[4aR-(4aa,6ab,9ab,13aa,15aa,15bb)]-; C(14a)-Homo-27-norgammacer-13-ene-3,21-dione (8CI); Isoserratenedione(7CI)