Patent ID: 8257981

Claim:
An ethinyl aniline compound for determination of biomolecules according to the following formula: where R 1 is an antenna function, the antenna function is one of 1,10-phenanthroline (1), fluorene (2), acetophenone (3), benzophenone (4), fluorenone (5), xanthenone (6), azaxanthone (7), anthraquinone (8), acridone (9), quinoline (10) and coumarin (11) R 2 is a chelate forming agent, containing a coordinated lanthanide (III) ion; X is —OH or a group with affinity for a biomolecule, bonded to a carboxylate group of the chelate forming agent by means of an amide bond; and Y is —H or a group with affinity for the biomolecule, coupled to the antenna function.