InChI=1/C19H16O5/c20-13-9-12-18(23-13)14-15(19(24-12)7-3-4-8-19)17(22)11-6-2-1-5-10(11)16(14)21/h1-2,5-6,12,18H,3-4,7-9H2/t12-,18+/m1/s1 D41614593A34D193