66138-58-7 Tc-99m-(Sn)Methylenediphosphonate Tc-99m-Sn-Mdp Tc-99m-Sn-Medronate Tc-99m-Technetium-tin-methylene-diphosphonate Technetium Tc 99m (Sn)methylenediphosphonate Technetium(4+)-(99)Tc tin(2+)methylenebis-phosphonic acid salt