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Class Information
Number: 534/606
Name: Organic compounds -- part of the class 532-570 series > Organic compounds (class 532, subclass 1) > Azo > Quaternary ammonium or hydrazinium attached indirectly to an azo group by nonionic bonding > Hetero ring containing > The pentavalent nitrogen is a ring member > Azo bonded directly to a hetero ring or to a polycyclo ring system having a hetero ring as one of the cyclos
Description: Compounds wherein an azo group is bonded directly to a hetero ring or to a polycyclo ring system which contains a hetero ring as one of the cyclos.

Sub-classes under this class:

Class Number Class Name Patents
534/607 The hetero ring contains the pentavalent nitrogen 76

Patents under this class:
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Patent Number Title Of Patent Date Issued
8211606 Coloring compound, yellow toner, sheet for heat-sensitive transfer recording, and ink Jul. 3, 2012
7993446 Dispersing agent for organic pigment and use thereof Aug. 9, 2011
7658770 Agents for coloring keratin fibers Feb. 9, 2010
7371831 Azo dyestuffs May. 13, 2008
7109312 Dark quenchers for donor-acceptor energy transfer Sep. 19, 2006
6518407 Reactive dye compound comprising at least one chromophore moiety and at least one nitrogen-containing heterocycle Feb. 11, 2003
6140478 Basic azo compounds, their production and use Oct. 31, 2000
6130319 Methods of making cationic azo dye compounds having flocculating properties using reactive dyes Oct. 10, 2000
6048968 Cationic azo dyes based on aminobenzoic acid Apr. 11, 2000
5969112 Yellow cationic dyes having flocculating properties Oct. 19, 1999
5925745 Reactive dyes containing a permanent quaternary ammonium group Jul. 20, 1999
5919914 Clathrate of bis [6-hydroxy-4-methyl-5-(3-methyl-imidazolium-1-yl) -3-(phen-4-ylazo) pyridin-2-one] ethylene and an aromatic compound Jul. 6, 1999
5587465 5-chloro-4-fluoropyrimidinyl substituted diazopyridone Dec. 24, 1996
5545724 Cationically bridged tetrakisazo dyestuffs with variable couplers, their production and use Aug. 13, 1996
5424404 Biscationic azo dyes and intermediates therefor Jun. 13, 1995
5386015 Monoazo and disazo compounds having 5-cyano-2,4-and 4,6-dichloropyrimidyl groups Jan. 31, 1995
5359041 Pyridone dyestuffs Oct. 25, 1994
5352334 The use of metal-free sulfo group free basic disazo compounds containing two identical 6-hydroxypyrid-2-one coupling component radicals for producing colored paper Oct. 4, 1994
5342927 Reactive dyestuffs for the dyeing and printing of hydroxyl-or amino-containing materials Aug. 30, 1994
5328995 Azo dyes containing triazine middle components and a 1,4-phenylene-2,5-disubstituted coupling component Jul. 12, 1994
5306813 Reactive dyes having a bulky linker group Apr. 26, 1994
5284939 Process for the preparation of highly concentrated solutions of cationic azo dyes Feb. 8, 1994
5264560 Preparation of quaternized azo dyes Nov. 23, 1993
5241054 Cationic azo dyes Aug. 31, 1993
5175259 Mono- and bis-azo compounds containing 6-hydroxy-3-heterocyclic onium-pyridone-2-groupings coupled to diazo components containing diazine or triazine rings Dec. 29, 1992
5175260 Disazo dyes with hydroxysulfonylnaphthalene coupling components Dec. 29, 1992
5077396 Azo compounds containing two 6-hydroxypyrid-2-one coupling component radicals the nitrogen atoms of which are linked by a biscationic radical Dec. 31, 1991
5059683 Dyes containing 6-hydroxypyrid-2-one groups the 1-positions of which contain substituted 1,3,5-triazinyl or pyrimidyl-piperazino or -piperazinium groups linked through bridging radicals and in Oct. 22, 1991
5037964 Metal-free sulfo group-free basis disazo and trisazo compounds containing two different 6-hydroxypyrid-2-one coupling component radicals Aug. 6, 1991
5023324 Biscationic disazo and trisazo compounds having optionally further substituted 6-hydroxy-4-methy-3-N-pyridiniumpyridone-2 coupling component radicals, dyes compositions comprising them and the Jun. 11, 1991
5015292 Recording fluid for the ink jet process May. 14, 1991
5001229 Water soluble basic dyestuffs Mar. 19, 1991
5001226 Metal-free disazo and polyazo compounds having at least one 6-hydroxypyrid-2-one coupling component radical linked to a 1-amino- or hydroxy-3-amino- or hydroxybenzene coupling component radica Mar. 19, 1991
4968781 Fiber-reactive dyes comprising a halopyrimidine for which a vinylsulfonyl or the like moiety is attached via a bridge member Nov. 6, 1990
4921945 Disazo dyes containing an acetoacetabukube coupling component and a quaternized aminoalkylene aminocarbonyl group bound to it May. 1, 1990
4898933 Water-soluble fiber-reactive aminotriazine and vinylsulfone containing azo dyestuffs having carboxy- or carbamoyl pyridinium groups Feb. 6, 1990
4897469 Aniline series azo reactive dyes ortho- or para-substituted by vinyl sulfonyl reactive groups Jan. 30, 1990
4883866 Methine-azo compounds containing cyclic cationic ammonium groups Nov. 28, 1989
4880916 Cationic azo dyes containing 2(p-aminophenyl)oxazolo [4,5-b]pyridines and similar compounds as diazo components Nov. 14, 1989
4877412 Sulfo group-containing monoazo compounds having an unsubstituted or substituted 4-(benzothiazol-2'-yl)phenyl or 4-(6'-benzothiazol-2"yl)-benzothiazol-2'-yl)phenyldiazo component radical an Oct. 31, 1989
4875903 Monoazo compounds containing a 2-sulfophenyl diazo component radical and a 1-hydroxy-naphthalene-sulfonic or disulfonic acid coupling component radical and two substituted 1,3,5-triazine rings Oct. 24, 1989
4865990 Protein adsorbent including a colored compound containing a quaternary ammonium especially amidinium or guanidimium cationic group and a cellulose reactive group Sep. 12, 1989
4847364 Methine-azo compounds containing cyclic cationic ammonium groups and open-chain coupling components Jul. 11, 1989
4820806 Metal-free azo compounds containing a vinylsulfonyl group and at least one basic group and 1:1 and 1:2 metal complexes thereof Apr. 11, 1989
4754021 Methine-azo compounds containing cyclic ammonium groups Jun. 28, 1988
4742161 Disazo and trisazo compounds containing one 6-hydroxypyrid-2-one coupling component radical per azo radical May. 3, 1988
4742160 Sulfo group-containing basic azo compounds having a central 1,3,5-triazine ring and two terminal 1-hydroxynaphthyl-2 groups and 1:1 and 1:2 metal complexes therof May. 3, 1988
4693726 Process for dyeing or printing cellulose fibers or cellulose blend fibers with pyridinium-triazine reactive dye, axable without alkali Sep. 15, 1987
4686285 Basic azo and non-azo compounds having one or two disubstituted 1,3,5-triazine rings each of which is linked through a bridging radical to the 1-position of a pyrazole ring Aug. 11, 1987
4673735 Azo compounds having at least one 6-hydroxypyrid-2-one coupling component radical metal complexes thereof and intermediates therefor Jun. 16, 1987

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