having the carboxyl group directly attached to an aromatic carbocyclic ring

Full Title

Preparation of azo dyes from other azo compounds > by acylation of hydroxy groups > with monocarboxylic acids, carbamic acid esters or halides, monoisocyanates or haloformic acid esters > having the carboxyl group directly attached to an aromatic carbocyclic ring

Classification Context

Section:

CHEMISTRY; METALLURGY

Class:

DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR

Subclass:

ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; MORDANTS; LAKES