Synonyms: Senkarkane;Renardin;Senkirkine;SENKIRKIN;Senkirkine (neutral);Renardine (neutral) (VAN);Senkirkine (neutral) (VAN);CCRIS 557;HSDB 3536;NSC-89945;2,12-Dihydroxy-4-methyl-11,16-dioxosenecionanium;Senecionanium, 8,12-dihydroxy-4-methyl-11,16-dioxo-;12-Hydroxy-4-methyl-4,8-secosenecionan-8,11,16-trione;4,8-Secosenecionan-8,11,16-trione, 12-hydroxy-4-methyl-;trans-15-Ethylidene-12-beta-hydroxy-4,12-alpha,13-beta-trimethyl 8-oxo-4,8 secosenec-1-enine;AC1O5G0S;2318-18-5;LS-7699;4,8-Secosenecionan-8,11,16-trione, 12-hydroxy-4-methyl- (9CI);(4E,6R,7R,11Z)-4-ethylidene-7-hydroxy-6,7,14-trimethyl-2,9-dioxa-14-azabicyclo[9.5.1]heptadec-11-ene-3,8,17-trione