C09B31/053 - CPC Classification Index

ClassID:

102117 ⎘

C09B31/053 - CPC Classification

Classification description:

Disazo and polyazo dyes of the type A->B->C, A->B->C->D, or the like, prepared by diazotising and coupling; Disazo dyes from a coupling component "C" containing a directive amino group Amino naphthalenes

Sub-classes:

C09B31/057 » containing acid groups, e.g. -COH, -SOH, -POH, -OSOH, -OPOH; Salts thereof 8

Recent Application in this class:

20220098412

2022-03-31

Dichroic azo-azomethine dyes for liquid crystal compositions

20200062964

2020-02-27

Bis-azo colorants for use as bluing agents

20190315966

2019-10-17

Compounds for the detection of senescent cells

20190225812

2019-07-25

Compounds, linked with haptens, for the detection of senescent cells

20190185673

2019-06-20

Bis-azo colorants for use as bluing agents

20170306237

2017-10-26

Composition, and optical film including the composition

20170218202

2017-08-03

Bis-Azo Colorants For Use As Bluing Agents