Compounds having the formula ##STR1## and acid-addition salts thereof, wherein R is hydrogen or alkyl of 1 to 3 carbon atoms and n is 0,1,2,3 or 4 are useful reagents for derivatizing organic compounds to permit the radioiodination of those compounds and their use as tracers in radioimmunoassays, or to permit their use as haptens.
化合物的分子式为##STR1##及其酸加成盐。其中R为氢或1至3个碳原子的烷基,n为0、1、2、3或4。这些化合物是有用的试剂,用于衍生有机化合物,以允许这些化合物的放射性
碘标记,并将其用作放射免疫测定中的示踪剂,或者允许它们用作半抗原。