benzenesulfonic acid, 3,4-dimethyl-, sodium salt, benzenesulfonic acid, 3,4-dimethyl-, sodium salt (1:1). benzenesulfonic acid, SODIUM XYLENE SULPHONATE 40%, Sodium xylene sulphonate, Eltesol SX 93, Sulfonac XS 33, Reworyl NXS 40, Eltesol SX pellets, Kualimate SXS 93