Asymmetric cyanine fluorescent dyes, compositions and their...

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C435S002000, C435S006100, C435S007100, C436S091000, C436S063000, C436S800000, C546S180000, C546S181000, C546S268400, C546S270100, C546S271700, C546S277400, C546S281100, C546S284100, C546S339000

Reexamination Certificate

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08067602

ABSTRACT:
Asymmetric cyanine fluorescent dyes are represented by general formula I. These kinds of dyes may be used as a staining agent for nucleic acids, with the spectra at 600-900 nm in the near-infrared region and without interference from background fluorescence. These kinds of dyes may be useful with small-type red semiconductor lasers as the light source (such as 633 nm). Compositions comprising these dyes and methods for staining biological samples using these dyes or compositions are also provided.

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