Abstract: Acid azo dyes containing thiazole coupling components, of the general formula ##STR1## where D is the radical of a diazo component,R is hydrogen, acetyl, benzoyl or an aliphatic, cycloaliphatic, aromatic or heterocyclic radical,R.sup.1 and R.sup.2 independently of one another are optionally substituted alkyl, cycloalkyl, aralkyl or aryl,R.sup.1 may also be hydrogen andR.sup.1 and R.sup.2 together with the nitrogen may be a heterocyclic radical, andthe radicals D, R, R.sup.1 and/or R.sup.2 may in total contain from 1 to 4 --SO.sub.3 H groups.The deeply colored novel compounds are particularly suitable for dyeing polyamides, and the dyeings obtained have very good lightfastness and wetfastness.

Abstract: Brown to violet azo dyes of the general formula ##STR1## where X and Y are chlorine or bromine, R.sup.1 is hydrogen, methyl, ethyl, chlorine, methoxy or ethoxy, R.sup.2 is hydrogen, chlorine, bromine, methyl, ethyl, methoxy, ethoxy, C.sub.1-4 alkanoylamino, benzoylamino or alkoxycarbonylamino, where alkoxy is of 1 to 4 carbon atoms, and the radicals R.sup.3 are identical or different, unsubstituted or substituted aliphatic, cycloaliphatic or aromatic radicals. The dyes may be used for dyeing synthetic fibers, especially polyesters, and give very fast dyeings.

Abstract: Mixtures of dyes of the formula ##STR1## where R is hydrogen or methyl and n is a number from 0 to 6 are exceptionally suitable--especially when used in the form of stock solution--for coloring mineral oil products.

Abstract: Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers, in the swollen state, with a dye of the formula ##STR1## where X is hydrogen, chlorine, bromine, cyano, nitro, alkylsulfonyl of 1 to 4 carbon atoms, phenylsulfonyl, methoxy or ethoxy, Y is hydrogen, chlorine, bromine, cyano or nitro, Z is a radical of the formula ##STR2## Q is oxygen or sulfur, R.sup.1 is alkyl of 1 to 4 carbon atoms, methoxymethyl, phenoxymethyl or phenyl which is unsubstituted or substituted by chlorine, bromine, nitro, methyl, methoxy or ethoxy, R.sup.2 is hydrogen, methyl, ethyl, phenyl or phenyl substituted by chlorine, bromine or methyl, R.sup.3 is hydrogen, methyl or, if R.sup.2 is methyl, is C.sub.1 to C.sub.4 alkoxycarbonyl, R.sup.2 and R.sup.3 together with the linking carbon atoms are phenylene or phenylene substituted by chlorine, methyl, methoxy or ethoxy and K is a radical of a coupling component selected from the pyrazolone, pyrazole, indole, quinolone or homophthalimide series.

Abstract: P-aminoazo dyes of the formula: ##STR1## in which D is a benzoisothiazolyl group;B.sup.1 is hydrogen, methyl, ethyl, methoxy, ethoxy;B.sup.2 is hydrogen, methyl, ethyl, methoxy, ethoxy, chloro, bromo, C.sub.1 to C.sub.4 alkanoylamino or C.sub.1 to C.sub.4 alkoxycarbonylamino;R.sup.1 is the radical ##STR2## C.sub.1 to C.sub.4 alkyl optionally bearing hydroxy, C.sub.1 to C.sub.4 alkoxy, C.sub.1 to C.sub.4 alkanoyloxy, C.sub.1 to C.sub.4 alkoxycarbonyl, C.sub.1 to C.sub.4 alkanoylamino or chloro as a substituent, phenylethyl, phenoxyethyl or cyclohexyl and the group -A.sup.1 --CO--A.sup.2 represents acyl, acyloxy or acylamino derived from a carbonic acid derivative in which A.sup.

Abstract: Uniformly dyed water-swellable cellulosic fibers obtained by dyeing cellulosic fibers in the swollen state with a dye of the formula ##STR1## in which D is the radical of a diazo component;R.sup.1 and R.sup.2 are optionally substituted alkyl and one of them may also be cyclohexyl, phenyl, methoxyphenyl or ethoxyphenyl and X is hydrogen, chloro, methyl or acylamino, the molecule containing in the radicals R.sup.1, R.sup.2 and X at least one group: --CO--R.sup.3 --Y--Ar where R.sup.3 is C.sub.1 to C.sub.3 alkylene; ##STR2## Y is oxygen, sulfur or R.sup.4 is hydrogen or C.sub.1 to C.sub.4 alkyl; andAr is phenyl or phenyl bearing chloro, bromo, methyl, methoxy, ethoxy, C.sub.1 to C.sub.4 alkoxycarbonyl or cyano as a substituent.

Abstract: Disperse dyes of the formula ##STR1## in which D is the radical of a diazo component, Y is a linear or branched, unsubstituted or substituted alkylene of one to four carbon atoms;R.sup.1 is hydrogen, optionally substituted linear or branched alkyl of one to four carbon atoms, optionally substituted cycloalkyl or aralkyl, phenyl, or a radical of the formula: ##STR2## and R.sup.2 is hydrogen or C.sub.1 to C.sub.6 alkyl which may bear chloro, bromo or cyano as a substituent; andD and the rings A and B may bear one or more further substituents other than --SO.sub.3 H and --COOH;and also to their productions and their use for dyeing water-repellent fibrous materials. The dyes are eminently suitable for dyeing hydrophobic fibers, particularly polyesters, in yellow to blue-green shades of excellent fastness properties.