having one nitrogen atom as the only ring hetero atom

Full Title

Azo dyes containing onium groups > containing cyclammonium groups attached to an azo group by a carbon atom of the ring system > having one nitrogen atom as the only ring hetero atom

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