Anthraquinone derivatives

摘要

A water-soluble anthraquinone compound of the formula: <IMAGE> I wherein A represents a divalent hydrocarbon group; X represents a divalent hydrocarbon group; and R1 & R2 each independently is H or alkyl or together, with X and the N atoms to which they are attached, represent a diazaheterocycle; R represents a monovalent hydrocarbon group; n is 0 or 1; Z is H or a group, Y-B; Y is a divalent heterocycle; and B is an activated halogen atom, and an adduct thereof with a carbohydrate substrate, capable of selectively absorbing certain proteinaceous materials and suitable for use in the chromatographic separation of proteins.