Synonyms: Pyridinium, 4,4'-[1,6-hexanediylbis(iminocarbonyl)]bis[1-octyl-, bromide, rotaxane compd. with stereoisomer of tetradecahydro-2,18:3,17-dimethano-2,3,4a,5a,6a,7a,8a,9a,10a,11a,12a,13a,14a,15a,17,18,19a,20a,21a,22a,23a,24a,25a,26a,27a,28a,29a,30a-octacosaazabispentaleno[1''''',6''''':5'''',6'''',7'''...