摘要:The chemical structure of the metabolic product of ethylhexabital (EHB : 5-cyclohexenyl-5-ethylbarbituric acid) isolated from the urine of rabbits receiving EHB was confirmed to be 5-(3'-oxo-1'-cyclohexen-1'-yl)-5-ethylbarbituric acid by degradation reactions of EHB-metabolite.