ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C12H16N4O6/c1-15-10-5(11(20)16(2)12(15)21)13-9(14-10)8-7(19)6(18)4(3-17)22-8/h4,6-8,17-19H,3H2,1-2H3,(H,13,14)/t4-,6-,7-,8?/m1/s1/file?format=sdf&get3d=True -- InChI=1S/C12H16N4O6/c1-15-10-5(11(20)16(2)12(15)21)13-9(14-10)8-7(19)6(18)4(3-17)22-8/h4,6-8,17-19H,3H2,1-2H3,(H,13,14)/t4-,6-,7-,8?/m1/s1 could not be loaded.