title: A nuclear magnetic resonance method for the determination of the purity of commercial dequalinium chloride.
abstract: 4-amino-1-(10-4'-quinaldinylaminodecyl)quinaldinium chloride (3) has been identified through nuclear magnetic resonance (NMR) studies as one of the impurities of a commercial sample of dequalinium chloride (CAS 522-51-0). The NMR technique is proposed as a rapid method for the recognition and quantification of the impurities in dequalinium chloride samples.
authors.affiliation: Dipartimento di Chimica, Centro sullo Studio delle Sostanze Organiche Naturali, Milan, Italy.
authors.forename: C
authors.initials: C
authors.lastname: Boschetti
authors.forename: G
authors.initials: G
authors.lastname: Fronza
authors.forename: C
authors.initials: C
authors.lastname: Fuganti
authors.forename: P
authors.initials: P
authors.lastname: Grasselli
authors.forename: A G
authors.initials: AG
authors.lastname: Magnone
authors.forename: A
authors.initials: A
authors.lastname: Mele
authors.forename: C
authors.initials: C
authors.lastname: Pellegatta
mesh_terms: D002851:Chromatography, High Pressure Liquid; D002855:Chromatography, Thin Layer; D003868:Dequalinium / Q000302:isolation & purification*; D004340:Drug Contamination; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D016339:Spectrometry, Mass, Fast Atom Bombardment
chemical_list: D003868:Dequalinium