[Characteristic features of 35S-benzoylthiamine monophosphate in albino mice]

Equimolar doses (30 mM/kg) of 35S-labelled thiamin, thiamin monophosphate or benzoyl thiamin monophosphate were administered intraperitoneally into mice. Increase in content of labelled metabolites, derived from 35S-benzoyl thiamin monophosphate, as compared with 35S-thiamin and 35S-thiamin monophosphate, was more distinct and prolonged in mice tissues, especially in brain and heart muscle, within 6-24 hrs. In blood this relationship was opposite. Total 35S was excreted with urine also at the highest rate after the 35S-benzoyl thiamin monophosphate administration as compared with the effect of thiamin and thiamin monophosphate but differences between the experimental data obtained with the latter compounds were only slight.