4b',7a'-dihydro-4a'H-spiro[furan-3,8'-furo[3',4':3,4]pyrrolo[1,2-b]pyridazine]-2,5,5',7'(4H)-tetrone

Order 65251-27-6 dihydro,spiro,furan,pyrrolo,pyridazine,tetrone,[1,2-b]pyridazin,[1,2-b]pyridazine
Furan
70022-91-27,11-Methano-2H-cycloocta[f][2]benzopyran-8-aceticacid,4-(3-furanyl)-1,4,4a,5,6,6a,7,8,9,10,11,12b-dodecahydro-4a,7,9,9-tetramethyl-10-[(2-methyl-1-oxo-2-butenyl)oxy]-2,13-dioxo-,methyl ester, [4R-[4a,4aa,6aa,7a,8a,10b(E),11a,12ba]]-