A new complex: ~188Re-tetrofosmin has been prepared by heating in a water bath.The RCP of ~188Re-tetrofosmin was over 90% by TLC
and stable over 6h at roomtemperature. The biodistribution of the complex in mice was similar to that of themyocardial imaging agent: ~99mTc-tetrofosmin
188Re-tetyofosmin should be a cationiccomplex with a linear trans-oxo core.