143199-58-0 Spiro[furan-3(2H),1'(2'H)-naphthalene]-5'-aceticacid,4'a-carboxy-5'-formyl-5-(3-furanyl)decahydro-2,4',6'-trihydroxy-2',8'a-bis(hydroxymethyl)-,[1'R-[1'a(2R*,5S*),2'a,4'b,4'ab,5'a,6'a,8'ab]]- 94410-23-8 (3R)-3aβ,4,5,6,6aβ,7,8,9,9aβ,9bα-Decahydro-3β,8β-dihydroxy-3-(hydroxymethyl)-6,9-bis(methylene)azuleno[4,5-b]furan-2(3H)-one