ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C8H16NO6S.Ca/c1-8(2,5-10)6(11)7(12)9-3-4-16(13,14)15;/h6,10H,3-5H2,1-2H3,(H,9,12)(H,13,14,15);/q-1; 2/p-1/file?format=sdf&get3d=True  -- InChI=1S/C8H16NO6S.Ca/c1-8(2,5-10)6(11)7(12)9-3-4-16(13,14)15;/h6,10H,3-5H2,1-2H3,(H,9,12)(H,13,14,15);/q-1; 2/p-1 could not be loaded.