Similar names: Retrorsine (6CI,7CI,8CI); Senecionan-11,16-dione, 12,18-dihydroxy-; (3Z,5R,6S,14aR,14bR)-3-Ethylidene-3,4,5,6,9,11,13,14,14a,14b-decahydro-6-hydroxy-6-(hydroxymethyl)-5-methyl[1,6]dioxacyclododecino[2,3,4-gh]pyrrolizine-2,7-dione; NSC 107659; Retrorsin; [1,6]Dioxacyclododecino[2,3,4-gh]pyrrolizine-2,7-dione, 3-ethylidene-3,4,5,6,9,11,13,14,14a,14b-decahydro-6-hydroxy-6-(hydroxymethyl)-5-methyl-, [5R-(3Z,5R*,6S*,14aR*,14bR*)]-; β-Longilobine