title: Mass spectral identification of benzothiazole derivatives leached into injections by disposable syringes.
abstract: Five benzothiazole derivatives leached into injections by the rubber plunger-seals of disposable syringes were identified by electron impact (EI) and chemical ionization (CI) mass spectrometry. These are 2-hydroxybenzothiazole, 2-mercaptobenzothiazole, 2-(methylmercapto)benzothiazole, 2-(2-hydroxyethoxy)benzothiazole and 2-(2-hydroxyethylmercapto)benzothiazole. 2-Mercaptobenzothiazole is used as a vulcanization accelerator. The other four compounds are formed from the zinc derivative of 2-mercaptobenzothiazole during sterilization with ethylene oxide. Toxicological, technological and legal consequences of the leaching are discussed briefly.
mesh_terms: D052160:Benzothiazoles; D004209:Disposable Equipment; D013058:Mass Spectrometry / Q000379:methods; D013594:Syringes; D013844:Thiazoles / Q000032:analysis*
chemical_list: D052160:Benzothiazoles; D013844:Thiazoles; C005465:benzothiazole