Patent ID: 8628899

Claim:
An azo compound, being represented by the following general formula (1): wherein R 1 represents an alkyl group having 1 to 6 carbon atoms, or a phenyl group; R 2 to R 6 each represent a hydrogen atom, or a polymer containing a partial structural formula represented by the general formula (2) shown below, and at least one of R2 to R6 is the polymer; R 7 to R 11 each represent a hydrogen atom, a COOR 12 group, or a CONR 13 R 14 group, and at least one of R 7 to R 11 is a COOR 12 group, or a CONR 13 R 14 group; and R 12 to R 14 each represent a hydrogen atom, or an alkyl group having 1 to 3 carbon atoms: wherein R 15 represents a hydrogen atom, or an alkyl group having 1 or 2 carbon atoms; and * is a bonding position through which the polymer is bonded to the azo compound as R 2 to R 6 in the general formula (1).