ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2Ni.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+2;/p-4/file?format=sdf&get3d=True -- InChI=1S/2Ni.H4O7P2/c;;1-8(2,3)7-9(4,5)6/h;;(H2,1,2,3)(H2,4,5,6)/q2*+2;/p-4 could not be loaded.