title: The acetylcholinesterase reactivator HI-6 (1-[[[4-(aminocarbonyl)pyridinio]methoxyl]methyl]- 2-[(hydroxyimino)methyl]-pyridinium dichloride): a comparative study of HI-6 samples from various sources.
abstract: A comparison of the chemical purity, toxicology and potency of HI-6 (1-[[[4-(aminocarbonyl)pyridinio]methoxy]methyl]-2- [(hydroxyimino)methyl]-pyridinium dichloride) obtained from various sources (Canada, Israel, Yugoslavia, The Netherlands, United Kingdom) was performed. There were no significant differences between HI-6 obtained from Israel, Yugoslavia, The Netherlands and Canada regarding their potency, when combined with atropine, as an antidote of organophosphate poisoning. HI-6 obtained from the United Kingdom was significantly more toxic and less potent than any of the other HI-6 samples. In addition, the results of this study showed that there was no significant difference between HI-6 prepared as a laboratory batch and HI-6 prepared commercially with regards to chemical purity, toxicology or potency.
authors.affiliation: Biomedical Defence Section, Defence Research Establishment Suffield, Ralston, Alberta, Canada.
authors.forename: J G
authors.initials: JG
authors.lastname: Clement
authors.forename: P A
authors.initials: PA
authors.lastname: Lockwood
authors.forename: H G
authors.initials: HG
authors.lastname: Thompson
mesh_terms: D000818:Animals; D002801:Cholinesterase Reactivators / Q000032:analysis* / Q000633:toxicity; D004340:Drug Contamination; D005260:Female; D007928:Lethal Dose 50; D008297:Male; D051379:Mice; D010091:Oximes; D011726:Pyridinium Compounds / Q000032:analysis* / Q000494:pharmacology / Q000633:toxicity
chemical_list: D002801:Cholinesterase Reactivators; D010091:Oximes; D011726:Pyridinium Compounds; C022870:asoxime chloride