Novel compound having azo skeleton and pigment dispersant, pigment composition, pigment dispersion, and toner containing the compound

An azo compound having a structure, a high molecular weight polymer of which has a monomer unit represented by formula (2) and is bound to a structure represented by the following Formula (1)

• wherein, in Formula (1),
• R1 each independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, or a cyano group,
• R2 represents an alkyl group having 1 to 6 carbon atoms, a phenyl group, an alkoxy group having 1 to 6 carbon atoms, or an amino group,
• R3 to R7 each independently represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a trifluoromethyl group, a cyano group, or a linking group, the linking group is bonded to the high molecular weight polymer, and at least one of R3 to R7 is the linking group,
• m represents an integer of 3 or 4, n represents an integer of 2 or 3, and m+n is 6;
• and
• in Formula (2), R8 represents a hydrogen atom or an alkyl group having 1 to 6 carbon atoms and R9 represents a phenyl group, a carboxyl group, a carboxylic acid ester group, or a carboxylic acid amide group.