Labeled phosphonic acid compositions for investigations of in vivo deposits of calcium

摘要

The composition and methodology associated with the formulation of a halogenated phosphonic acid labeled in the ring moiety are disclosed having the formula: <IMAGE> wherein R1 is aryl and is labeled with a halogen and R2 is hydrogen, alkyl, alkenyl, amino, benzyl, hydroxyl-CH2PO3H -CH2CH2PO3H2 and is labeled with halogen. The compositions are especially useful for scanning investigations of in vivo deposits of calcium.