代谢
4-硝基苯胺在大鼠肝脏微粒体中的主要代谢物通过高压液相色谱法被分离出来,并通过与合成化合物的质量、核磁共振、紫外光谱以及高效液相色谱保留时间进行比较,被鉴定为2-氨基-5-硝基酚(2-羟基-4-硝基苯胺)...用苯巴比妥和3-甲基胆烷预处理大鼠,分别将4-硝基苯胺转化为2-羟基-4-硝基苯胺的速率提高了2倍和4倍;该反应需要NADPH,并且可以被微粒体的热处理、氩气和一氧化碳-氧气氛围以及细胞色素P-450的抑制剂2-[(2,4-二氯-6-苯基)苯氧基]乙胺所抑制。
The principal rat liver microsomal metabolite of 4-nitroaniline was isolated by high pressure liquid chromatography and was characterized as 2-amino-5-nitrophenol (2-hydroxy-4-nitroaniline) by comparison of its mass, nuclear magnetic resonance, and ultraviolet spectra and HPLC retention time to the synthetic compound. ... Pretreatment of rats with phenobarbital and 3-methylcholanthrene increased the rate of conversion of 4-nitroaniline to 2-hydroxy-4-nitroaniline by 2-fold and 4-fold, respectively; the reaction required NADPH and was inhibited by heat treatment of microsomes, by argon and carbon monoxide:oxygen atmospheres and by the cytochrome P-450 inhibitor, 2-[(2,4-dichloro-6-phenyl)phenoxy]ethylamine. ...
来源:Hazardous Substances Data Bank (HSDB)