Dyestuffs as affine residues

Details Dyestuffs as affine residues Dyestuffs as affine residues

C - Chemistry, Metallurgy

09

B

260/396.5, 260/2

C09B 15/00 (2006.01) C09B 53/00 (2006.01)

Patent

CA 1131225

ABSTRACT OF THE DISCLOSURE An adsorbent facilitates the affinity-specific separation of macromolecular materials for example, biopoly- mers including nucleic acid mixtures, in a relatively simple manner; the adsorbent comprises a polymeric carrier material, for example, polybisacrylamide, on to which an affine residue for macromolecular material is covalently bound, directly or indirectly; suitable affine residues include dyestuff resi- dues; novel dyestuffs are provided, and processes for their preparation which can be employed as the affine residues; the dyestuffs have the formula Image or Image (I) (II) in which X is a CH group or a nitrogen atom, Y is an oxygen or sulphur atom or an NH group or a group of formula - Image wherein each R1 is independently selected from a hydrogen atom, methyl and acryloyl, R2 is a hydrogen atom or a methyl radical, R3 is a hydrogen atom or a methyl radical, R4 is a hydrogen atom or a methyl radical and A? is an anion, or the residue of an intercalating dyestuff containing a planar poly- cyclic ring system; provided that at least one R1 is acryloyl or Image wherein R5 is a hydrogen atom or an acryloyl radical, or Image wherein R is a hydrogen atom or a methyl radical and A? is an anion.

377253

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