Abstract: Disazo compounds of the formula ##STR1## in which A is a diazo component radical,B is a coupling/diazo component radical of the 1,4-phenylene, 1,4-naphthylene or 5,6,7,8-tetrahydro-1,4-naphthylene series,R.sub.3 is hydrogen (C.sub.1-4)alkyl or ##STR2## wherein ring Z is unsubstituted or monosubstituted by halo, (C.sub.1-4)alkyl or (C.sub.1-4)alkoxy, andR.sub.4 is (C.sub.1-6)alkyl, (C.sub.1-6)alkoxy, amino mono(C.sub.1-6)alkylamino or di(C.sub.1-6) alkylamino,with the proviso that the compound contains a single sulpho group on the diazo component radical A and no other water-solubilizing group, which compound is in free acid or salt form, and mixtures of such compounds which are useful as anionic dyestuffs for dyeing and printing substrates such as natural and synthetic polyamides (e.g., wool, silk and nylon), leather, polyurethanes and polyolefins modified to contain basic groups. The dyes may be used as such or in the form of liquid (e.g., concentrated aqueous) or solid preparations.

Abstract: Compounds of the formula ##STR1## in which R.sub.1 is C.sub.1-4 alkyl,Hal is halogen,R.sub.2 is ##STR2## --SO.sub.2 C.sub.1-4 alkyl, --SO.sub.2 NR.sub.8 R.sub.9 or --NHCOOR.sub.10,R.sub.3 is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,R.sub.4 is hydrogen or C.sub.1-4 alkyl,R.sub.5 is hydrogen; C.sub.1-4 alkyl; cyclohexyl; cyclohexyl substituted by one to three C.sub.1-4 alkyl groups; phenyl or phenyl substituted by one or two substituents selected from halo, C.sub.1-4 alkyl and C.sub.1-4 alkoxy,R.sub.6 is hydrogen or hydroxy, with the proviso that R.sub.6 is hydrogen when R.sub.2 is --NHCOOR.sub.10,R.sub.7 is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy,each of R.sub.8 and R.sub.9, independently, is hydrogen, C.sub.1-4 alkyl, C.sub.2-4 hydroxyalkyl, cyclohexyl; or phenyl or phenyl substituted by one or two substituents selected from halo, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, sulfo and carboxy, with the proviso that not more than one of R.sub.8 and R.sub.9 is cyclohexyl, phenyl or substituted phenyl,R.sub.

Abstract: Mixtures of symmetrical and asymmetrical 1:2 cobalt complexes of compounds of the formulae ##STR1## wherein, EACH R.sub.1, independently, is hydrogen or (C.sub.1-4)alkyl, andEach R.sub.2 and R.sub.3, independently, is hydrogen, halogen, (C.sub.1-4)alkyl or (C.sub.1-4)alkoxy,Which complexes are optionally in salt form and which mixtures are useful for dyeing or printing substrates dyeable with anionic dyes, e.g., natural and synthetic polyamides such as wool, silk and nylon, polyurethanes, polyofefins modified to contain basic groups, leather and metals such as anodically oxidized aluminum.

Abstract: Compounds of the formula ##STR1## in which R.sub.1 signifies an optionally substituted hydrocarbon radical,R.sub.2 signifies hydrogen, halogen, nitro, a linear or branched optionally substituted alkyl radical such as haloalkyl, an optionally substituted cycloalkyl radical, alkoxy, alkylthio, an optionally substituted aryl radical, an acyl radical of an aliphatic or aromatic sulphonic or carboxylic acid, an ester or amide group of a sulphonic acid, an ester or amide group of a carboxylic acid, an ester group of a carbamic acid, unsubstituted or mono- or disubstituted amino or an acylamino group,The ring A may be further substituted, and may as R.sub.2 bear a condensed cycloalkyl radical, but ring A and any substituent on it is free from carboxylic or sulphonic acid groups and from groups in the ortho-position to the azo group which are capable of the formation of metal complexes,Provided that the total number of carbon atoms in R.sub.

Abstract: Asymmetric 1:2 chromium complexes of the formula ##STR1## in which R.sub.1 signifies a hydrogen or halogen atom or a nitro group,R.sub.2 signifies a hydrogen or halogen atom, a nitro or sulpho group,R.sub.3 signifies a hydrogen or halogen atom, or a lower alkyl radical,R.sub.4 signifies a hydrogen or halogen atom, a lower alkyl radical or a sulpho group,Each of R.sub.5, R.sub.6 and R.sub.7, independently, signifies a hydrogen or halogen atom or a lower alkyl radical,R signifies a hydrogen atom or a lower alkyl radical, andM.sup.+ signifies a cation,With the provisosI. the radicals R.sub.1 and R.sub.2 occupy the 4- and 6-positions,Ii. where R.sub.4 signifies a sulpho group one of the radicals R.sub.1 and R.sub.2 signifies a halogen atom or a nitro group in the 4-position, andIii.

Abstract: Dyes of the formula ##STR1## AND SUBSTITUTED DERIVATIVES THEREOF, WHEREIN R is a coupling component radical,R.sub.1 is a coupling component radical, with the proviso that R and R.sub.1 are different, andN is 1 to 8,Are disclosed. They are useful for dyeing and printing natural and synthetic polyamides, cotton and other cellulosic fibers, polypropylene fibers modified by basic groups, synthetic polyamides and polyesters modified by acid groups, paper and leather. They exhibit good fastness to light, wet treatments and abrasion.

Abstract: Disclosed are water-soluble azo dyes of formula I, which are useful for dyeing substrates capable of being dyed by anionic dyes, particularly polyamides, paper and leather, ##STR1## in which the X's each signify a halogen atom, R.sub.1 signifies a hydrogen or halogen atom, or a nitro, hydroxy, --SO.sub.3 H, alkyl or alkoxy group, or an alkylated or acylated amino group, andR.sub.2 signifies a hydrogen atom or a hydroxy, alkyl, alkoxy or --SO.sub.3 H group.

Abstract: Azo dyes bearing at least one sulphonic acid group and of formula I, ##SPC1##in whichR signifies an alkyl radical of 6 to 18 carbon atoms or a cyclohexyl radical,R.sub.1 signifies hydrogen, halogen, alkyl, or --SO.sub.3 H,R.sub.2 signifies hydrogen, halogen or alkyl, andn signifies 0, 1 or 2,Which compounds, in free acid or salt form, dye textiles, paper and leather. The dyeings have good light fastness, especially on polyamides and basic dyeable polypropylene, and good fastness to wet treatments, rubbing, gas fumes and dry cleaning. The dyes have good build-up power, are well-soluble in hot and cold water and reserve polyesters and polyacrylonitrile.