毒理性
识别和使用:2-氯吡啶(2-CPY)用作合成有机、药物和农业化学(杀菌剂、除草剂)制造的中间体。它还用作相转移催化剂,并且是制造用于化妆品和各种药品产品中的吡啶硫醇基生物杀灭剂的关键中间体。人体研究:对2-CPY进行光处理后产生的遗传毒性产物在培养的人类淋巴细胞中测试时被发现。动物研究:将雄性白化大鼠通过吸入大约6.05 mg/L浓度的2-CPY暴露6小时。所有动物在暴露后3天内死亡。将雄性和雌性家兔通过皮肤接触未稀释的2-CPY,浓度分别为40、48、50、58、63、68、79、82或100 mg/kg。2-CPY在完整或磨损的皮肤上应用时,仅引起短暂的局部充血。观察到的初级大体病变是肝脏的出血性坏死。在大鼠中,肝脏损伤是吸入2-CPY引起的首要改变。在大鼠发育研究中,处理对交配表现、生育力或妊娠长度没有影响。幼崽存活率略有下降。使用50、100、500、1000和5000 mg/板的浓度对鼠伤寒沙门氏菌TA 97、TA 98、TA 100和TA 102株进行了细菌反向突变试验。结果在没有代谢激活的情况下为阴性,在有代谢激活的情况下对所有测试株为阳性。
IDENTIFICATION AND USE: 2-Chloropyridine (2-CPY) is used as an intermediate in synthetic organic, pharmaceutical, and agricultural chemical (fungicides, herbicides) manufacture. It is also used as a catalyst for phase transfer and is a key intermediate in the manufacture of pyrithione-based biocides for use in cosmetics and various pharmaceutical products. HUMAN STUDIES: Photo-treatment of 2-CPY produces genotoxic products discovered when tested in cultured human lymphocytes. ANIMAL STUDIES: Male albino rats were exposed to 2-CPY via inhalation at a concentration of approximately 6.05 mg/L for 6 hours. All animals died within 3 days after exposure. Male and female rabbits were exposed to the undiluted 2-CPY dermally at concentrations of 40, 48, 50, 58, 63, 68, 79, 82 or 100 mg/kg. 2-CPY caused only transient local congestion of the skin when applied to either intact or abraded skin. The primary gross lesion observed was hemorrhagic necrosis of the liver. In rats, liver damage was the primary alteration caused by the inhalation of 2-CPY. In rat developmental studies there were no effects of treatment on mating performance, fertility or length of gestation. There was a slight decrease in pup survival. A bacterial reverse mutation assay was performed on Salmonella typhimurium strains TA 97, TA 98, TA 100, and TA 102, using concentrations of 50, 100, 500, 1000 and 5000 mg/plate. The results were negative without metabolic activation, and positive with metabolic activation in all tester strains.
来源:Hazardous Substances Data Bank (HSDB)