1 XXG 3,3-dihydroxy-4-oxocyclohexa-1,5-diene-1-sulfonic acid 1.000 2 4SX 3,4-dihydroxybenzenesulfonic acid 0.923 3 DBX 2,5-dihydroxybenzenesulfonic acid 0.786 4 BNS Benzenesulfonic acid 0.769 5 6OR 3,5-dichloro-4-hydroxybenzene-1-sulfonic acid 0.733 6 K4N 4-oxidanylbenzenesulfonamide 0.714 7 PMB Para-mercury-benzenesulfonic acid 0.714 8 QAU 3-oxidanylbenzenesulfonamide 0.714 9 TSU Para-toluene sulfonate 0.714 10 VXC 4-bromanylbenzenesulfonic acid 0.714 11 VXN 4-chloranylbenzenesulfonic acid 0.714