The reaction of 1-(4-carboxyphenyl)-5-mercapto-1H-tetrazole with trimethyltin chloride in the presence of sodium ethoxide in benzene affords a novel 2D organotin network structure complex 1, which is an unusual organotin network containing a hexanuclear 60-membered organotin macrocycle. The complex has been characterized by elemental analysis, IR, and H-1, C-13, and Sn-119 NMR spectroscopy. Furthermore, we have also characterized the complex by X-ray crystallography.