(2008/06/13)
p. 15 - 31
(2007/10/02)4-(chlorosulfonyl)-2,3,5,6-tetrafluorobenzoyl chloride
ethylene glycol bis-(4-fluorosulphonyl-2,3,5,6-tetrafluorobenzoate)
methyl 4-N-phenylaminosulphonyl-2,3,5,6-tetrafluorobenzoate
4-chlorosulphonyl-2,3,5,6-tetrafluorobenzanilide
4-fluorosulphonyl-2,3,5,6-tetrafluorobenzanilide