Synonyms: 2H-Furo[2,3-f][2]benzopyran-2,8(3H)-dione,5a-ethenyloctahydro-4-hydroxy-3,9-bis(methylene)-, (3aa,4a,5aa,9aa,9bb)- (9CI); 2H-Furo[2,3-f][2]benzopyran-2,8(3H)-dione,5a-ethenyloctahydro-4-hydroxy-3,9-bis(methylene)-, (3aa,4a,5aa,9aa,9bb)-(?à)-; (?à)-Vernolepin; NSC 106398;dl-Vernolepin