(Methylsulfonyl)methanesulfonic acid 2-chloroethyl ester 2-Chloroethyl (methylsulfonyl)methanesulfonate 88343-72-0 BRN 3606917 Chlorethyl SOSO Clomesone Methanesulfonic acid, (methylsulfonyl)-, 2-chloroethyl ester Methanesulfonic acid, 1-(methylsulfonyl)-, 2-chloroethyl ester NSC 338947 SRI 6155