| abstract |
Compounds of the formula: (FORMULA) wherein R is phenyl, cyclopentyl or cyclohexyl, R1 is H or lower alkyl preferably CH3, X is in the ortho-, meta-or para- position, and is selected from the group consisting of 125I 123I, I, 18F, 77Br, 75Br, NH2, and -N=N-N (FORMULA) , R2 is in the 2, 3 and 4 position and is selected from the group consisting of H and lower alkyl, and Z (Alpha) is an anion; or free amine form thereof; methods for their production and compositions for and methods of tissue radio-assay and radio-external imaging utilizing said radioisotope containing compounds. |