InChI=1/C14H20O4/c1-2-12-3-9-4-13(6-12,10(15)16)8-14(5-9,7-12)11(17)18/h9H,2-8H2,1H3,(H,15,16)(H,17,18)/p-2/t9?,12?,13-,14+/fC14H18O4/q-2 E032F6CD111BC47A