ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C20H24N4O/c1-24-11-12(5-6-13(9-21)20(22)25)7-16-15-3-2-4-17-19(15)14(10-23-17)8-18(16)24/h2-4,10,12-13,16,18,23H,5-8,11H2,1H3,(H2,22,25)/t12-,13?,16-,18-/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C20H24N4O/c1-24-11-12(5-6-13(9-21)20(22)25)7-16-15-3-2-4-17-19(15)14(10-23-17)8-18(16)24/h2-4,10,12-13,16,18,23H,5-8,11H2,1H3,(H2,22,25)/t12-,13?,16-,18-/m1/s1 could not be loaded.