C09B45/02 - CPC Classification Index

ClassID:

102318 ⎘

C09B45/02 - CPC Classification

Classification description:

Complex metal compounds of azo dyes Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups

Sub-classes:

C09B45/025 » {of azo-pyridone series} 4
C09B45/04 » Azo compounds in general 1
C09B45/14 » Monoazo compounds 15
C09B45/24 » Disazo or polyazo compounds 6

Recent Application in this class:

20070254234

2007-11-01

Stabilized azo dye and method for its preparation