Patent ID: 7989638
Filing Date: 2011-08-02
Classification: C07D,C09B,G01N,Y10T

Abstract:
1. A conjugate of a biological substance prepared from Dye I or its biological salts, wherein C is a non-conjugated chain of 10-50 linear atoms selected from the group consisting of carbon and nitrogen that are further substituted by one or more substituents selected from a group consisting of hydrogen, alkyl having 1-20 carbons, hydroxyl, carbonyl, and RGM; n is 0, 1, 2 or 3; R R RGM is a carboxylic acid, an activated ester of a carboxylic acid, an acyl azide, an acyl nitrile, an imido ester, an isocyanate, an isothiocyanate, or a maleimide; and wherein the biological substance is selected from a group consisting of a peptide, protein, nucleotide, nucleic acid, carbohydrate, lipid, membrane or cell.