ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C16H13ClO4S.Na/c17-15-7-3-13(4-8-15)11-22(20,21)10-9-12-1-5-14(6-2-12)16(18)19;/h1-10H,11H2,(H,18,19);/q; 1/p-1/b10-9 ;/file?format=sdf&get3d=True  -- InChI=1S/C16H13ClO4S.Na/c17-15-7-3-13(4-8-15)11-22(20,21)10-9-12-1-5-14(6-2-12)16(18)19;/h1-10H,11H2,(H,18,19);/q; 1/p-1/b10-9 ; could not be loaded.