(1,6)Dioxacyclododecino(2,3,4-gh)pyrrolizine-3,7-dione, 3-ethylidene-3,4,5,6,9,11,13,14,14a,14b-decahydro-6-hydroxy-5,6-dimethyl-, 12-oxide, (3Z,5R,6R,14aR,14bR)- 12-Hydroxysenecionan-11,16-dione 4-oxide 13268-67-2 NSC 106677 Senecionan-11,16-dione, 12-hydroxy-, 4-oxide Senecionine N-oxide Senecionine oxide