Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.

Abstract: Compounds of the general formula (I) a process for their preparation and their use for dyeing and/or printing organic substrates.

Abstract: Polyazo dyes of the formula I ##STR1## where one of the two radicals X.sup.1 and X.sup.2 is hydroxyl and the other is amino,p and q are each independently of the other 0 or 1,D.sup.1 and D.sup.2 are each independently of the other a radical of the formula ##STR2## and B is a bridge member are prepared using novel sulfonamide intermediates and are useful as dyes for dyeing natural or synthetic substrates.

Abstract: There are described image-recording materials which include an image dye-providing compound comprising a novel naphthol azo cyan dye having a 3-aminobenzoisothiazole moiety. The image dye-providing compound includes a diffusion control moiety such as a hydroquinonyl developer group, a precursor thereof or a thiazolidine moiety and, may be diffusible or nondiffusible as a function of the diffusion control moiety.Image-recording materials according to the invention including those which contain high potential developers such as aminoreductone allow sufficient cyan chromophore to diffuse to the image-receiving layer to provide an acceptable photograph and result in no appreciable reduction of the 3-aminobenzoisothiazole moiety of the novel naphthol azo cyan dye.

Abstract: 1:2 chromium complex dyes suitable for dyeing nitrogen-containing materials and materials which contain hydroxyl groups, are disclosed which, in the form of the free acid, have the formula ##STR1## wherein each of the symbols independently has the following meanings: Z is nitrogen or a --CH,A is a benzene or naphthalene radical which carries the hydroxyl or carboxy ortho to the azo or azomethine group, or, if n is 1 and Z is a --CH, is the radical of an aliphatic, cycloaliphatic or aromatic aminocarboxylic acid,B and D are each independently of the other the radical of a coupling component which couples in the alpha- or o-position relative to X if Z is nitrogen, or the radical of an o-hydroxyaldehyde if Z is --CH,X is oxygen or --NR, wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl, with the proviso that X must be oxygen if Z is --CH,Y is a bridge member of the formula --SO.sub.2 or --SO.sub.2 --NR--SO.sub.2 --, wherein R is hydrogen or C.sub.1 -C.sub.4 alkyl,n is 0 or 1, andp is an integer from 0 to 6.