Synonyms: Pyrazino[1'',2'':1,5;4'',5'':1',5']dipyrrolo[2,3-b:2',3'-b']diindole-7,15(5H,7aH)-dione,5a,13a-bis(1,1-dimethyl-2-propenyl)-5a,8,8a,13,13a,15a,16,16a-octahydro-8a,16a-dihydroxy-,(5aR,7aS,8aR,13aS,15aS,16aS)- (9CI);Pyrazino[1'',2'':1,5;4'',5'':1',5']dipyrrolo[2,3-b:2',3'-b']diindole-7,15(5H,7aH)-dione,5a,13a-bis(1,1-dimethyl-2-propenyl)-5a,8,8a,13,13a,15a,16,16a-octahydro-8a,16a-dihydroxy-,[5aR-(5aa,7aa,8ab,13ab,15aa,16aa)]-; (-)-Gypsetin; Gypsetin; Gypsetine