Patent ID: 7141657

Claim:
An azo compound or the tautomer thereof represented by the following Formula (1-1): wherein, R 1 represents a hydrogen atom, alkyl group, aryl group, acyl group, carbamoyl group, alkylsulfonyl group, arylsulfonyl group, or heterocyclic group; R 3 represents a hydrogen atom, alkyl group, aryl group, alkoxy group aryloxy group, acylamino group, carbamoylamino group, alkylsulfonylamino group, or arylsulfonylamino group; R 9 represents a hydrogen atom, alkyl group, aryl group, acyl group, carbamoyl group, alkylsulfonyl group, or arylsulfonyl group; R 53 represents an alkyl group or aryl group; m is an integer of 2 to 4; and each R 54 , of which there are m in number, independently represents an alkyl group, aryl group, alkoxy group, aryloxy group, amino group, alkylthio group, arylthio group, acylamino group, alkylsulfonylamino group, or arylsulfonylamino group, and one R 54 bind to another R 54 forming a ring.