title: [Not Available].
abstract: Eight commercial samples of eosin have been analysed. Three problems were encountered in selecting material for use as a drug: the degree of hydration, the inorganic content and, above all, the composition of the xanthene moiety, which could contain up to 8 dyes.
authors.affiliation: Laboratoire de Chimie Analytique, UER des Sciences Pharmaceutiques et Biologiques, 4, avenue de l'Obervatoire, 75270 Paris Cedex 06, France.
authors.forename: D
authors.initials: D
authors.lastname: Fompeydie
authors.forename: P
authors.initials: P
authors.lastname: Levillain