ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/2CH2O2.Ca/c2*2-1-3;/h2*1H,(H,2,3);/q;; 2/p-2/file?format=sdf&get3d=True  -- InChI=1S/2CH2O2.Ca/c2*2-1-3;/h2*1H,(H,2,3);/q;; 2/p-2 could not be loaded.