(Alkoxymethyl)dimethyl{2-hydroxy-5-[(4-X-phenyl)azo]benryl}ammonium chlorid
es were prepared in high yield. All these chlorides, new analogues of benza
lkonium chloride, showed antimicrobial activity. Activity depends on the le
ngth and kind of substituent at the quaternary nitrogen atom. (C) 1999 Edit
ions scientifiques et medicales Elsevier SAS.