Dimers of unsymmetrical cyanine dyes containing pyridinium moiet

Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives

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536 243, 536 2532, 546165, 546256, 546152, 546176, C07H 2102, C07H 2104

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054100305

ABSTRACT:
The invention relates to nucleic acid stains that are homo- or heterodimers of unsymmetrical cyanine dyes, where at least one dye unit of the dimer is a substituted or unsubstituted benzazolium- or naphthazolium-pyridinium derivative, which dye unit is linked to another unsymmetrical cyanine dye unit, that is the same or different by an aliphatic chain containing one or more heteroatoms; such that the fluorescence of the dye molecules, when bound to nucleic acids, is enhanced. These dimers of unsymmetrical cyanine dyes have spectral properties and binding affinities superior to related monomers. In addition, the dyes can be tailored to absorb and emit in a wide range of wavelengths, which can be further varied by energy transfer mixtures, making the dyes useful for applications that involve simultaneous use of multiple dyes.

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