1-Ethanesulfonyl chloride 4-04-00-00034 (Beilstein Handbook Reference) 594-44-5 BRN 0773865 EINECS 209-842-5 ETHANESULFONYL CHLORIDE Ethanesulphonyl chloride Ethylsulfochloride Ethylsulfonyl chloride NSC 8649 TL 77