ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C33H20O10/c34-21-12-16(13-23-30(38)25(32(40)42-23)17-7-3-1-4-8-17)11-20-19(14-22(35)29(37)27(20)28(21)36)15-24-31(39)26(33(41)43-24)18-9-5-2-6-10-18/h1-15,35,37-39H,(H,34,36)/b23-13-,24-15-/file?format=sdf&get3d=True  -- InChI=1S/C33H20O10/c34-21-12-16(13-23-30(38)25(32(40)42-23)17-7-3-1-4-8-17)11-20-19(14-22(35)29(37)27(20)28(21)36)15-24-31(39)26(33(41)43-24)18-9-5-2-6-10-18/h1-15,35,37-39H,(H,34,36)/b23-13-,24-15- could not be loaded.