CHLOROETHANESULFONIC ACID,NA, SODIUM 2-CHLOROETHANESULFONATE, 2-chloroethanesulphonic acid, 2-Chlor-aethansulfonsaeure, 2-Chlorethanesulfonic acid, SODIUM 2-CHLOROETHANESULPHONATE MONOHYDRATE, 1-Chloro ethane-2-sulfonic acid, chloroethane sulfonic acid, 2-chloro-ethanesulfonic acid