ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/3ClHO4.Pr/c3*2-1(3,4)5;/h3*(H,2,3,4,5);/q;;;+3/p-3/file?format=sdf&get3d=True -- InChI=1S/3ClHO4.Pr/c3*2-1(3,4)5;/h3*(H,2,3,4,5);/q;;;+3/p-3 could not be loaded.