Identification of urinary metabolites of 2,4-dinitrotoluene (2,4-DNT) in rats.
作者:MASAAKI MORI、YOSHIFUMI NARUSE、HIROSHI KOZUKA
DOI:10.1248/cpb.29.1147
日期:——
Nine metabolites of 2, 4-dinitrotoluene (2, 4-DNT) in rat urine were detected by thin-layer chromatography (TLC) after repeated oral administration to male Wistar rats. These metabolites, 2-amino-4-nitrotoluene (2A4NT, M-I), 4-amino-2-nitrotoluene (4A2NT, M-II), 2, 4-diaminotoluene (2, 4-DAT, M-III), 2, 4-dinitrobenzyl alcohol (2, 4-DNB, M-IV), 2-amino-4-nitrobenzyl alcohol (2A4NB, M-V), 4-amino-2-nitrobenzyl alcohol (4A2NB, M-VI), 2-nitro-4-acetylaminotoluene (2N4AAT, M-VII), 2-amino-4-acetylaminotoluene (2A4AAT, M-VIII) and 2-amino-4-acetylaminobenzoic acid (2A4AAB, M-IX), were identified by comparison of ultraviolet (UV) and mass spectral data with those of authentic samples. The probable metabolism of 2, 4-DNT in rats is discussed on the basis of these results.
在雄性Wistar大鼠反复口服2, 4-二硝基甲苯(2, 4-DNT)后,通过薄层色谱法(TLC)检测到其尿液中的9种代谢产物。这些代谢产物分别是2-氨基-4-硝基甲苯(2A4NT,M-I)、4-氨基-2-硝基甲苯(4A2NT,M-II)、2, 4-二氨基甲苯(2, 4-DAT,M-III)、2, 4-二硝基苯甲醇(2, 4-DNB,M-IV)、2-氨基-4-硝基苯甲醇(2A4NB,M-V)、4-氨基-2-硝基苯甲醇(4A2NB,M-VI)、2-硝基-4-乙酰氨基甲苯(2N4AAT,M-VII)、2-氨基-4-乙酰氨基甲苯(2A4AAT,M-VIII)和2-氨基-4-乙酰氨基苯甲酸(2A4AAB,M-IX)。通过比较紫外(UV)和质谱数据与真实样品的数据,确定了这些代谢产物的身份。根据这些结果,讨论了2, 4-DNT在大鼠体内的可能代谢过程。