CPC Subgroup
C09B 45/04 Azo compounds in general
Full Title
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 > Azo compounds in general
4 direct subcodes
Child Classifications
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- C09B 45/06 Chromium compounds
- C09B 45/08 Copper compounds
- C09B 45/10 Cobalt compounds
- C09B 45/12 other metal compounds