thieno,furan,carboxaldehyde
Furan
72690-78-9(6E,10E)-5-(acetyloxy)-3a-hydroxy-6,10-dimethyl-3-methylidene-2-oxo-2,3,3a,4,5,8,9,11a-octahydrocyclodeca[b]furan-4-yl 2,3-dimethyloxirane-2-carboxylate 159121-97-84,6',7'-trihydroxy-6-(hydroxymethyl)-2',5',5',8a'-tetramethyl-3',4',4a',5',6',7',8',8a'-octahydro-2'H,3H-spiro[1-benzofuran-2,1'-naphthalene]-7-carbaldehyde