InChI=1/C14H20O4/c1-7(2)5-10-6-8(3)9(4)11(13(15)16)12(10)14(17)18/h5-6,9-12H,1-4H3,(H,15,16)(H,17,18)/p-2/t9-,10-,11+,12-/m0/s1/fC14H18O4/q-2 CF552601D56D7E56