72945-61-0 Oxidronic acid 99mTc-complex Phosphonic acid, (hydroxymethylene)bis-, technetium-99Tc salt Tc-99m Hydroxymethylene diphosphonate Tc-99m-Hdp Tc-99m-Hmdp Tc-99m-Oxidronate Technetium hmdp Technetium osteoscan-hdp Technetium salt (hydroxymethylene)bis(phosphonic acid) Technetium-99mTc-methylene diphosphonate technetium Tc 99m hydroxymethylene diphosphonate