title: Identification and quantitation of a 3-benzylidenephthalide contaminant of phenindione tablets and its characterization as a potentially immunogenic substance.
mesh_terms: D000941:Antigens; D001597:Benzylidene Compounds / Q000032:analysis* / Q000276:immunology; D004340:Drug Contamination; D004342:Drug Hypersensitivity / Q000276:immunology; D010630:Phenindione / Q000008:administration & dosage / Q000032:analysis* / Q000276:immunology; D013607:Tablets
chemical_list: D000941:Antigens; D001597:Benzylidene Compounds; D013607:Tablets; C011404:benzylidenephthalide; D010630:Phenindione