CPC Subgroup
C09B 43/136 with polyfunctional acylating agents
Full Title
Preparation of azo dyes from other azo compounds > by acylation of amino groups > with polyfunctional acylating agents
4 direct subcodes
Child Classifications
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- C09B 43/14 with phosgene or thiophosgene
- C09B 43/145 with polycarboxylic acids
- C09B 43/155 with di- or poly-isocyanates
- C09B 43/16 linking amino-azo or cyanuric acid residues