Abstract: Compounds of the formula (1) ##STR1## in which X denotes a sulfur atom or the group ##STR2## in which R denotes a hydrogen atom, an alkylene-C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.6 - or alkyl-C.sub.1 -C.sub.6 - group, each of which can be substituted by hydroxyl, sulfo, carboxyl or cyano groups, R.sub.1 denotes a hydrogen atom or an alkyl-C.sub.1 -C.sub.6 -group which can be substituted by --SO.sub.3 M or COOM groups (where M denotes an H, Li, Na, K or Ca atom), hydroxyl, amino, methylamino, acetylamino, alkyl-C.sub.1 -C.sub.4 -sulfonylamino, methoxy, ethoxy, .beta.-hydroxyethylsulfonyl, phenyl, monosulfophenyl, disulfophenyl, or 4-[.beta.-hydroxyethylsulfonyl]-2-sulfophenyl groups, or represents a phenyl or naphthyl group, each of which can be substituted by --SO.sub.3 M or COOM groups (where M denotes an H, Li, Na, K or Ca atom), alkyl-C.sub.1 -C.sub.4 -, alkoxy-C.sub.1 -C.sub.4 -, amino, methylamino, alkyl-C.sub.1 -C.sub.4 -sulfonylamino or acetylamino groups, and R.sub.

Abstract: Water-soluble monoazo compounds of the general formula (1) ##STR1## in which D is a phenyl radical or naphthyl radical, either of which is substituted and mandatorily contains at least one group which imparts solubility in water and D is substituted, for example by 1, 2 or 3 substituents which can be selected from the set consisting of 1 sulfamoyl, 1 carbamoyl, 1 trifluoromethyl, 1 benzothiazol-2-yl, 1 sulfobenzothiazol-2-yl, 1 methylbenzothiazol-2-yl, 1 methylsulfobenzothiazol-2-yl, 1 styryl, 1 nitrostyryl, 1 sulfostyryl and 1 nitrosulfostyryl group and, preferably, three sulfo groups, two carboxy groups, two alkyl groups of 1-4 C atoms, two alkoxy groups of 1-4 C atoms, 1 bromine atom and two chlorine atoms and one or two groups of the formula --SO.sub.2 --Z with Z of the meaning below, and the group --SO.sub.2 --Z can also be bonded to one of the substituents and Z represents the .beta.

Abstract: A process for the preparation of 3-(acyl)amino-4-alkoxy-phenyl-.beta.-hydroxyethyl-sulfone (sulfates) of the formula (1) ##STR1## in which R.sub.1 is alkyl having 1-4 carbon atoms and R.sub.2 is hydrogen or one of the groupings ##STR2## with the proviso that n=1 if R.sub.2 =H and n=0 if R.sub.2 =acyl, by converting 2-alkoxyacylanilines of the formula (2) ##STR3## in which R.sub.1 and R.sub.2 have the meanings given, in a known manner to the corresponding sulfochlorides substituted in the p-position relative to the alkoxy group, reducing the sulfochlorides with an alkali metal sulfite or ammonium sulfite in an aqueous medium at pH 7.0-8.5 and at -5 to +40.degree. C. to give the corresponding sulfinates, alkoxylating the latter with ethylene oxide in an aqueous medium at pH 6.0-8.5 and 40.degree.-80.degree. C. to give the 3-acylamino-4-alkoxyphenyl-.beta.-hydroxyethyl-sulfones of the formula (1) (with R.sub.

Abstract: Disazo compounds corresponding to the general formula (1) ##STR1## as well as their metal salts, in which D.sub.1 denotes the benzene or naphthalene nucleus, which can be further substituted by one or two substituents from the group of fluorine, chlorine, bromine, carboxy, lower alkyl, lower alkoxy and nitro and/or one, two or three sulfo groups, D.sub.2 is the benzene or naphthalene nucleus, which is substituted by the substituent X defined below and, in addition to the group --SO.sub.2 --Y, can be further substituted by one or two substituents from the group of carboxy, lower alkyl and lower alkoxy and/or by one substituent from the group of fluorine, chlorine, bromine and nitro and/or one, two or three sulfo groups, X denotes a fluorine, chlorine or bromine atom, which is necessarily bonded to D.sub.2 in ortho-position to the azo group, Y denotes the vinyl, .beta.-sulfatoethyl, .beta.-chloroethyl, .beta.-thiosulfatoethyl or a .beta.