ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C6H10O4.2Na/c7-5(8)3-1-2-4-6(9)10;;/h1-4H2,(H,7,8)(H,9,10);;/q;2* 1/p-2/file?format=sdf&get3d=True  -- InChI=1S/C6H10O4.2Na/c7-5(8)3-1-2-4-6(9)10;;/h1-4H2,(H,7,8)(H,9,10);;/q;2* 1/p-2 could not be loaded.