| abstract |
An azo dye represented by formula (I):n formula (I) nA-N = N-B n wherein, A represents a group having a substituentnrequired for inducing an intramolecular nucleophilicnsubstitution reaction with a nitrogen atom of a reducednazo group as a nucleophilic species when the azo group isnreductively decomposed, the group forming a compoundncontaining the nitrogen atom in a ring structure, and Bnrepresents an aromatic or hetero ring which is bound tonthe azo group through a carbon atom. |