Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
IPC Subgroup
C09B 29/16

Naphthol-sulfonic acids

Introduced: September 1968

Last revised: January 2006

Full Title

Monoazo dyes prepared by diazotising and coupling > from coupling components containing hydroxy as the only directing group > of the naphthalene series > Naphthol-sulfonic acids

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