71549-79-6 Benzenesulfonic acid, mono-(C15-30)-branched, dibranched, and linear-(C11-13)-alkyl derivs. Benzenesulfonic acid, mono-C15-30-branched alkyl and di-C11-13-branched and linear alkyl derivs. Benzenesulfonic acid, mono-C15-3O-branched alkyl and di-C11-13-branched and linear alkyl derivs.