Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...
Reexamination Certificate
2003-03-10
2008-12-16
Davis, Zinna N (Department: 1625)
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Having -c-, wherein x is chalcogen, bonded directly to...
C514S183000, C540S001000, C546S257000
Reexamination Certificate
active
07465747
ABSTRACT:
It is intended to provide novel labeling reagents characterized by having a group capable of binding to a substance to be labeled (for example, a biological substance, a physiologically active substance, etc.), easily forming a complex together with a rare earth ion, the complex being stable in an aqueous solution, and having a sufficient fluorescence intensity and a long fluorescence life time regardless of buffer types; complexes composed of the above labeling reagent with a rare earth ion; fluorescence labels containing the above complex; a fluorescence assay method using the above fluorescent label; etc. Namely, labeling reagents comprising a compound having a 2,2′:6′,2″-tripyridine skeleton or a 2,6-dipyrazolopyridine skeleton and having a group capable of binding to a substance to be labeled (for example, a biological substance, a physiologically active substance, etc.) and a group capable of forming a complex together with a rare earth ion; complexes composed of the above labeling reagent with a rare earth ion; fluorescence labels containing the above complex; a fluorescence labeling method using the above complex as a label; and a fluorescence assay method using the above fluorescent label.
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Matsumoto Kazuko
Tan Mingqian
Wang Guilan
Yuan Jingli
Davis Zinna N
Matsumoto Kazuko
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Tokyo Chemical Industry Co., Ltd.
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