| abstract |
Azo dyes represented by the general formula (1):n n n n n n n n R 11 represents a monovalent substituent, R 12 represents a hydrogen atom or a monovalent substituent, Ar 1 represents a specific heterocyclic group such as the group shown below, and X represents an atom necessary for forming a ring;n n n n n n n n In the heterocyclic group, R 61 to R 63 each independently represent a hydrogen atom or a substituent. |