ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/3Mg.2H2O.10O.4Si/h;;;2*1H2;;;;;;;;;;;;;;/q3* 2;;;10*-2;4* 4/p-2/file?format=sdf&get3d=True  -- InChI=1S/3Mg.2H2O.10O.4Si/h;;;2*1H2;;;;;;;;;;;;;;/q3* 2;;;10*-2;4* 4/p-2 could not be loaded.