Patent ID: 7553959
Filing Date: 2009-06-30
Classification: C07H,C09B,Y10S

Abstract:
1. A dye composition of the formula wherein R comprises a reactive group covalently linked to said Fluorescent Dye wherein said Fluorescent Dye comprises a combination of two or more members selected from: a) unsaturated aliphatic groups comprising an alkene or alkyne; b) unsaturated heterocyclic groups; c) aromatic groups; and wherein R provides a conjugated system or an electron delocalized system with said Fluorescent Dye and said composition optionally comprises a charged or polar R′ group and wherein said composition further comprises a reactive group R x attached to either said fluorescent dye, said R group or said polar R′ group, wherein said reactive group R x comprises sulfhydryl, hydroxyl, amine, isothiocyanate, isocyanate, monochlorotriazine, dichlorotriazine, mono- or di-halogen substituted pyridine, mono- or di-halogen substituted diazine, maleimide, aziridine, sulfonylhalide, acid halide, hydroxysuccinimide ester, hydroxysulfosuccinimide ester, imidoester, hydrazine, azidonitrophenyl, azide, 3-(2-pyridyl dithio)-proprionamide, glyoxal or aldehyde.