2-Fluoro-4-fluorosulfonylphenyl N-m-chlorophenyl-carbamate 23379-26-2 3-Fluoro-4-hydroxybenzenesulfonyl fluoride m-chlorocarbanilate Benzenesulfonyl fluoride, 3-fluoro-4-hydroxy-, m-chlorocarbanilate m-Chlorocarbanilic acid, 2-fluoro-4-fluorosulfonylphenyl ester