Synonyms: Pyridinium,1-[3-chloro-2-(fluorosulfonyl)benzyl]-3-[2-(3,4-dichlorophenoxy)acetamido]-,bromide (8CI); Pyridinium,1-[[3-chloro-2-(fluorosulfonyl)phenyl]methyl]-3-[[(3,4-dichlorophenoxy)acetyl]amino]-,bromide (9CI);3-(3,4-Dichlorophenoxyacetamido)-N-(3-chloro-2-fluorosulfonylbenzyl)pyridiniumbromide; NSC 212045