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Class Information
Number: 534/604
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
Description: Compounds which contain a hetero ring.

Sub-classes under this class:

Class Number Class Name Patents
534/605 The pentavalent nitrogen is a ring member 131

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
7993446 Dispersing agent for organic pigment and use thereof Aug. 9, 2011
7553337 Hair colorants for simultaneous dyeing and brightening of keratin fibers Jun. 30, 2009
7537620 Agent for coloring keratin fibers May. 26, 2009
7517367 Cationic naphthyldiazo dyes and keratin fibers-coloring agents containing these dyes Apr. 14, 2009
7513916 Agents for coloring keratin fibers Apr. 7, 2009
7381806 Cationic azo azine dyes and colorants that contain these compounds Jun. 3, 2008
7326777 Fiber reactive dyestuffs Feb. 5, 2008
7235645 Cationic azo monomers or symmetric dimers, preparation thereof, compositions comprising same and process for dyeing keratin fibers Jun. 26, 2007
7183409 Basic mono- and bisazo compounds Feb. 27, 2007
7109312 Dark quenchers for donor-acceptor energy transfer Sep. 19, 2006
7066969 Dyes incorporating annionic and cationic groups Jun. 27, 2006
7029503 Disazo compound, reactive dye composition, and method of dyeing cellulose or cellulose-containing fibers Apr. 18, 2006
6831163 Bichromophoric molecules Dec. 14, 2004
6765102 Water-compatible cationic epoxy compounds Jul. 20, 2004
6624291 Yellow-reactive monoazo dyes containing a tertiary or a quarternary nitrogen group, methods for their preparation and use thereof for dyeing hydroxy-and/or carboxamido-containing fiber materia Sep. 23, 2003
6518407 Reactive dye compound comprising at least one chromophore moiety and at least one nitrogen-containing heterocycle Feb. 11, 2003
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
5998590 Magenta dyes having flocculating properties Dec. 7, 1999
5969112 Yellow cationic dyes having flocculating properties Oct. 19, 1999
5932708 Reactive azo dyes having a permanent quaternary ammonium group and a fiber-reactive group Aug. 3, 1999
5929215 Basic monoazo compounds Jul. 27, 1999
5925745 Reactive dyes containing a permanent quaternary ammonium group Jul. 20, 1999
5750661 Basic dyes based on amides of J-acid (1-hydroxy-6-aminonaphthalene-3-sulfonic acid) and amides of J-acid May. 12, 1998
5571898 Basic dyes based on amides of j-acid (1-hydroxy-6-aminonaphthalene-3-sulfonic acid) and amides of j-acid Nov. 5, 1996
5545724 Cationically bridged tetrakisazo dyestuffs with variable couplers, their production and use Aug. 13, 1996
5498701 Basic disazo compounds containing sulphonic acid groups Mar. 12, 1996
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
5175260 Disazo dyes with hydroxysulfonylnaphthalene coupling components Dec. 29, 1992
5118737 Water-soluble dye Jun. 2, 1992
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
5019165 Recording fluid for the ink jet process May. 28, 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
4975118 Recording fluid containing phenyl azo naphthalene dyes for the ink jet process Dec. 4, 1990
4968781 Fiber-reactive dyes comprising a halopyrimidine for which a vinylsulfonyl or the like moiety is attached via a bridge member Nov. 6, 1990
4940783 Disazo containing diaminostilbene as diazo component and an aniline coupling component bearing a cationic alkyl ammonium group Jul. 10, 1990
4929719 Fiber-reactive dyes containing an aniline radical which carries two different vinylsulfonyl moieties May. 29, 1990
4921945 Disazo dyes containing an acetoacetabukube coupling component and a quaternized aminoalkylene aminocarbonyl group bound to it May. 1, 1990
4873319 Disazo dyes containing a pyrimidine coupling component and a cationic alkyl ammonium group Oct. 10, 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
4839468 N-(hydroxy-sulpho-naphthyamino-triazinyl)-arylene-diamines Jun. 13, 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
4764599 Disazo compounds containing an N,N-bis(2-amino-benzoyl)piperazine derivative as the diazo component Aug. 16, 1988
4764175 Metal-free monoazo and disazo compounds having a 1-hydroxy-5,6-, 7- or 8- substituted 1,3,5-triazinylamino-3- or 4 sulfonic acid coupling component radical and 1:1 copper complexes Aug. 16, 1988
4754024 Fibre-reactive azo dyes containing vinylsulfonyl or analogous groups Jun. 28, 1988
4754021 Methine-azo compounds containing cyclic ammonium groups Jun. 28, 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

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