2-furancarboxylic acid 5-(chlorosulfonyl) methyl ester
ethyl 5-(chlorosulfonyl)furan-2-carboxylate
5-Chlorosulfonyl-furan-2-carboxylic acid isopropyl ester
5-Chlorosulfonyl-furan-2-carboxylic acid propyl ester
5-Chlorosulfonyl-furan-2-carboxylic acid butyl ester