Serene, LLC

Zechariah David Sandlin

Jaime Simon

Nigel Raymond Stevenson

Described are methods and compositions for processes of preparing a radioactive solution of Sn-117m tetraiodide. Aspects include reacting a radioactive solid Sn containing Sn-117m with a solution of Iin an organic solvent at a temperature and for a duration sufficient to result in the formation of Sn-117m tetraiodide. Then, the organic solvent is removed by evaporation to leave dry Sn-117m tetraiodide. The organic solvent is a low boiling point solvent capable of dissolving Iand Sn tetraiodide. The organic solvent is selected from the group consisting of an alcohol and a chlorinated solvent. In embodiments may be selected from the group consisting of dichloromethane, trichloromethane, tetrachloromethane, or mixtures thereof. In embodiments, the organic solvent excludes alcohol. The Imay be in a slight molar excess to the radioactive solid Sn. The method may further include distilling the reactants to remove excess Ifrom the distillate.

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Angleton, TX, United States of America

Zechariah David Sandlin