CPC Subgroup
C09B 43/128 Aliphatic, cycloaliphatic or araliphatic acids
Full Title
Preparation of azo dyes from other azo compounds > by acylation of amino groups > with monocarboxylic acids, carbamic esters or halides, mono- isocyanates, or haloformic acid esters > Aliphatic, cycloaliphatic or araliphatic acids