ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C15H10O4/c1-7-2-4-10-12(13(7)17)15(19)9-5-3-8(16)6-11(9)14(10)18/h2-6,16-17H,1H3/file?format=sdf&get3d=True  -- InChI=1S/C15H10O4/c1-7-2-4-10-12(13(7)17)15(19)9-5-3-8(16)6-11(9)14(10)18/h2-6,16-17H,1H3 could not be loaded.