InChI=1/C18H18O5/c1-19-15-7-11-5-6-21-18(13(11)9-16(15)20-2)12-3-4-14-17(8-12)23-10-22-14/h3-4,7-9,18H,5-6,10H2,1-2H3/t18-/m0/s1 BCA45D0B2110D096