英文名称:Benzenesulfonic acid,mono-C15-30-branched alkyl and di-C11-13-branched and linear alkyl derivs.,calcium salts, overbased; Benzenesulfonic acid, mono-C15-30-branched alkyl and di-C11-13-branched and linear alkyl derivs., calcium salts, overbased; Benzenesulfonic acid, mono-C15-30-branched alkyl and di-C11-13-branched and linear alkyl derivs., calcium salts, overbased benzene