Metabolism of ALS Inhibitory Herbicide Bispyribac-sodium [KIH-2023] in Rats

Autor: Yoshio Yusa, Kanji Ishikawa, Shoji Okada, Tadaaki Unai, Yasushi Fukai, Masakatsu Tezuka, Nobuhide Wada
Rok vydání: 1995
Předmět:
Zdroj: Journal of Pesticide Science. 20:479-486
ISSN: 1349-0923
1348-589X
DOI: 10.1584/jpestics.20.479
Popis: Absorption, distribution and metabolism of Bispyribac-sodium [sodium 2,6-bis(4,6-dimethoxypyrimidin-2-yloxy)benzoate] or [KIH-2023] in rats orally dosed with 14 C-KIH-2023 were investigated. More than 90% of the dosed radioactivity was detected in the excreta within 96 hr after dosing. Level of the radioactivity in the blood of male and female rats reached maxima at 2 and 1 hr after dosing, respectively, and then decreased rapidly to about a half level of maxima (C 1/2 ). The radioactivity of tissues was lower at 96 hr after dosing than that at C 1/2 -time. Most of the radioactivity in the urine, feces, liver and plasma was detected as unchanged KIH-2023. The major radioactive compounds excreted into the bile were KIH-2023 and its glucuronide. Repeated oral administration of KIH-2023 for 15 days gave similar results from the single oral one in the excretion, tissue distribution and metabolism of 14 C-KIH-2023.
Databáze: OpenAIRE