1H-5,10c-Ethanonaphtho(1,2-c:7,8-c')difuran-3,10-dione, 1,8-dibutylidene-5,5a,6,7,8,10b-hexahydro-, (5S,8Z,10cS)-, E,Z'-6,6',7,3'a-diligustilide

C2002780,C4310489

T109