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Publication of BE689376ApublicationCriticalpatent/BE689376A/xx
C07D249/00—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms
C07D249/02—Heterocyclic compounds containing five-membered rings having three nitrogen atoms as the only ring hetero atoms not condensed with other rings
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
C09B44/00—Azo dyes containing onium groups
C09B44/02—Azo dyes containing onium groups containing ammonium groups not directly attached to an azo group
C09B44/04—Azo dyes containing onium groups containing ammonium groups not directly attached to an azo group from coupling components containing amino as the only directing group
