C09B43/00 - CPC Classification Index

ClassID:

102250 ⎘

C09B43/00 - CPC Classification

Classification description:

Preparation of azo dyes from other azo compounds

Sub-classes:

C09B43/003 » {Cyclisation of azo dyes; Condensation of azo dyes with formation of ring, e.g. of azopyrazolone dyes} 1
C09B43/006 » {by introduction of hydrocarbon radicals on C-atom of azo dye} 2
C09B43/02 » by sulfonation 0
C09B43/04 » by nitration 0
C09B43/06 » by oxidation 3
C09B43/08 » by reduction 1
C09B43/11 » by introducing hydrocarbon radicals or substituted hydrocarbon radicals on primary or secondary amino groups 9
C09B43/12 » by acylation of amino groups 2
C09B43/18 » by acylation of hydroxyl group {or of mercapto group; } 7
C09B43/28 » by etherification of hydroxyl groups 4
C09B43/30 » by esterification of -COOH or -SOH groups 3
C09B43/32 » by reacting carboxylic or sulfonic groups, or derivatives thereof, with amines; by reacting keto-groups with amines 9
C09B43/40 » by substituting hetero atoms by radicals containing other hetero atoms 6
C09B43/44 » by substituting amine groups for hydroxyl groups or hydroxyl groups for amine groups; Desacylation of amino-acyl groups; Deaminating 1

Recent Application in this class:

20210269747

Composition comprising hueing agent

20180072890

Dichroic azo compound and composition containing the same

20180037739

Dichroic pigment compounds and compositions containing the same

20170114033

Water-soluble triazabutadienes

20130255007

Azo dyes

20120272461

Dyes with changeable solubilities, and methods for their use

20110053155

Polar dyes

20090075188

Azo compound, curable composition, color filter, and method of producing the same

20090017278

Ink-Jet Printing Using Disazo Dyes

20060229441

Polar dyes

20060021162

Cationic diazo compound, compositions comprising at least one cationic diazo compound as a direct dye, a process for dyeing keratin fibers and device therefore

20060021160

Polycationic azo compounds for dyeing keratin fibers, dye composition containing the same, and methods for making such compounds

20060005324

Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor