**Figure 7.**

*Cytotoxic activity of Organo tin complexes of thiosemicarbazones.*

the ligand [75]. 2-Benzoylpyridine N(4)-phenyl thiosemicarbazone; 2-Acetyl pyrazine N(4)-phenyl TSC and its Diorgano Sn(IV), Antibacterial activity and cytotoxic activity against K562 leukemia cells of the free ligands and complexes were reported [76]. Pyridoxal thiosemicarbazone and its complexes of Diorgano Sn(IV) antitumor

activity were studied and observed that Ethyl, butyl, and phenyl substituted compounds suppress the proliferation of friend erythroleukemia cells (**Figure 7**) [77].
