ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C19H21NO3.C6H3N3O7/c1-20-9-8-19-12-5-7-15(22-3)18(19)23-17-14(21-2)6-4-11(16(17)19)10-13(12)20;10-6-4(8(13)14)1-3(7(11)12)2-5(6)9(15)16/h4-7,13,18H,8-10H2,1-3H3;1-2,10H/t13-,18?,19+;/m1./s1/file?format=sdf&get3d=True  -- InChI=1S/C19H21NO3.C6H3N3O7/c1-20-9-8-19-12-5-7-15(22-3)18(19)23-17-14(21-2)6-4-11(16(17)19)10-13(12)20;10-6-4(8(13)14)1-3(7(11)12)2-5(6)9(15)16/h4-7,13,18H,8-10H2,1-3H3;1-2,10H/t13-,18?,19+;/m1./s1 could not be loaded.