InChI=1S/C6H5O3S.Hg/c7-10(8,9)6-4-2-1-3-5-6;/h2-5H,(H,7,8,9); PARA-MERCURY-BENZENESULFONIC ACID O[S](=O)(=O)c1ccc([Hg])cc1 O[S](=O)(=O)c1ccc([Hg])cc1