ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C30H22N4O4/c1-15-13-31-27-22(35)11-25-30(26(15)27)12-18(30)14-34(25)29(37)21-9-17-8-19(6-7-20(17)33-21)32-28(36)24-10-16-4-2-3-5-23(16)38-24/h2-11,13,18,31,33H,12,14H2,1H3,(H,32,36)/file?format=sdf&get3d=True -- InChI=1S/C30H22N4O4/c1-15-13-31-27-22(35)11-25-30(26(15)27)12-18(30)14-34(25)29(37)21-9-17-8-19(6-7-20(17)33-21)32-28(36)24-10-16-4-2-3-5-23(16)38-24/h2-11,13,18,31,33H,12,14H2,1H3,(H,32,36) could not be loaded.