| abstract |
Compounds of general Formula I labeled with 121 I, 122 I, 123 I, 124 I, 125 I, 131 I and 132 I isotopes ##STR1## wherein R 6 is a C 1-6 aliphatic hydrocarbon residue and n C 2 -C 3 C 9 -C 10 is a single or a double bond, as well as their acid addition salts, n are useful as diagnostic media, e.g., in imaging dopamine and other receptors. |