ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C13H18N4O5/c1-5(19)6-2-17(12-8(6)11(14)15-4-16-12)13-10(21)9(20)7(3-18)22-13/h2,4-5,7,9-10,13,18-21H,3H2,1H3,(H2,14,15,16)/t5?,7-,9-,10-,13-/m1/s1/file?format=sdf&get3d=True  -- InChI=1S/C13H18N4O5/c1-5(19)6-2-17(12-8(6)11(14)15-4-16-12)13-10(21)9(20)7(3-18)22-13/h2,4-5,7,9-10,13,18-21H,3H2,1H3,(H2,14,15,16)/t5?,7-,9-,10-,13-/m1/s1 could not be loaded.