ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C28H24N6.2BrH/c1-21-27(23-13-5-3-6-14-23)33(25-17-9-11-19-31(21)25)29-30-34-26-18-10-12-20-32(26)22(2)28(34)24-15-7-4-8-16-24;;/h3-20H,1-2H3;2*1H/q+2;;/p-2/b30-29+;;/file?format=sdf&get3d=True  -- InChI=1S/C28H24N6.2BrH/c1-21-27(23-13-5-3-6-14-23)33(25-17-9-11-19-31(21)25)29-30-34-26-18-10-12-20-32(26)22(2)28(34)24-15-7-4-8-16-24;;/h3-20H,1-2H3;2*1H/q+2;;/p-2/b30-29+;; could not be loaded.