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Publication of BE447334ApublicationCriticalpatent/BE447334A/xx
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
C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
C09B23/0075—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain being part of an heterocyclic ring
C09B23/0083—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain being part of an heterocyclic ring the heteroring being rhodanine in the chain