Studies on metabolism of fungicide benzoic acid, 1,3-dithiolan-2-ylidenehydrazide in vitro

Gao, N.

Zhonghua Yu Fang Yi Xue Za Zhi 26(4): 223-226

1992


ISSN/ISBN: 0253-9624
PMID: 1302196
Document Number: 405086
The metabolism of fungicide benzoic acid, 1,3-dithiolan-2-ylidenehydrazied (Yekuling) was studied quantitatively in rat liver microsomes and liver soluble fractions pretreated with phenobarbital (PB) and 3-methylcholanthrene (3-MC) by high pressure liquid chromatography. The experimental results indicated that the major metabolic pathway of Yekuling in vitro was hydrolysis. PB can enhance amidase activity to increase formation of benzoic acid and 1,3-dithiolan-2-ylidenehydrazine. 3-MC treatment elevated rat liver microsomal cytochrome P-448, enhancing S-oxidation of Yekuling. On the other hand, S-oxidation of Yekuling by rat liver microsomal MFO was NADPH-dependent.

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