( -)-Sodium camphorsulfonate 1861-24-1 34850-66-3 Bicyclo(2.2.1)heptane-1-methanesulfonic acid, 7,7-dimethyl-2-oxo-, sodium salt EINECS 252-250-7 Sodium (1)-7,7-dimethyl-2-oxobicyclo(2.2.1)heptane-1-methanesulphonate Sodium camphorsulfonate Sodium di-10-camphorsulfonate