ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C13H18N2O6/c1-8-2-4-9(5-3-8)15(14-20)7-13(19)12(18)11(17)10(16)6-21-13/h2-5,10-12,16-19H,6-7H2,1H3/t10-,11-,12+,13?/m1/s1/file?format=sdf&get3d=True -- InChI=1S/C13H18N2O6/c1-8-2-4-9(5-3-8)15(14-20)7-13(19)12(18)11(17)10(16)6-21-13/h2-5,10-12,16-19H,6-7H2,1H3/t10-,11-,12+,13?/m1/s1 could not be loaded.