Patent ID: 6987174

Claim:
An azo compound represented by the following general formula (I): wherein R 1 represents a C 1-21 alkyl, a C 1-10 perfluoroalkyl, a C 2-21 alkenyl, a C 1-21 aryl, a C 1-21 aralkyl, a C 1-21 alkylamino, a C 1-21 aralkylamino, a C 1-21 arylamino, methacryloylamino, or ethoxycarbonylamino; R 2 represents a single bond, —CH 2 —, —CH 2 CH 2 —, —CH 2 CH 2 CH 2 — or —CH 2 CH 2 CH 2 CH 2 —; R 3 represents hydrogen, a C 1-21 alkyl, a halogen, a hydroxyl, or a C 1-21 alkoxy; R 4 represents a C 1-21 alkyl, a C 2-21 alkenyl, a C 1-21 aryl, or a C 1-21 aralkyl; R 5 represents hydrogen, a metal cation, or a cation of a nitrogen-containing compound; m denotes 1; and n denotes an integer from 0 to 4.