Fluorescent compound, complex, reagent, and specific binding assay employing said reagent
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United States of America Patent
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Nov 16, 1993
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N/A
app pub date -
Dec 20, 1991
filing date -
Dec 21, 1990
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Abstract
A fluorescent compound, which is readily capable of forming a stable complex with a rare-earth metal ion having fluorescence with satisfactory intensity even in an aqueous system and long fluorescence lifetime when formed a complex with the rare-earth metal ion, a complex of the fluorescent compound and the rare-earth metal ion, and a labelled reagent made therefrom, together with a specific binding assay using said labelling agent. A fluorescent compound expressed by the following formula A, typically exemplified by 2,15-diaza[3,3](2,9)-1,10-phenanthrolinophane-N.sup.2,N.sup.15 -diacetic acid. ##STR1##
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