ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C16H14O6/c1-21-10-4-2-8(3-5-10)16-15(20)14(19)13-11(18)6-9(17)7-12(13)22-16/h2-7,15-18,20H,1H3/t15-,16+/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C16H14O6/c1-21-10-4-2-8(3-5-10)16-15(20)14(19)13-11(18)6-9(17)7-12(13)22-16/h2-7,15-18,20H,1H3/t15-,16+/m0/s1 could not be loaded.