Patent ID: 8177861

Claim:
An azo pigment represented by the following general formula (1), a tautomer of the azo pigment, and a salt or a hydrate thereof: wherein G 0 and G 1 each independently represents a non-metal atomic group which can form a 5- or 6-membered heterocyclic ring wherein each heterocyclic ring may be unsubstituted or may have a substituent; each heterocyclic ring may be a monocyclic ring or a condensed ring; X represents a hetero atom; n represents an integer of 1 to 4; when n=2, the compound of formula (1) represents a dimer formed via A or a heterocyclic group represented by G 0 or G 1 ; when n=3, the compound of formula (1) represents a trimer formed via A and/or a heterocyclic group represented by G 0 or G 1 ; when n=4, the compound of formula (1) represents a tetramer formed via A and/or a heterocyclic group represented by G 0 or G 1 ; A represents any one selected from the group of substituents represented by (A-2) and (A-4) to (A-44) in the following general formula (2); and * represents the binding site to the N atom in the general formula (1); wherein in the group of substituents (A-2) and (A-4) to (A-44) represented by the general formula (2), R 11 to R 112 each independently represents a hydrogen atom or a substituent; Q 1 in (A-12), Q 2 in (A-41), Q 3 in (A-42) and Q 4 in (A-43) each represents a non-metal atomic group necessary for forming a 5-to 8-membered heterocyclic group with a hetero atom; Q 5 in (A-44) represents a non-metal atomic group necessary for forming a 5-to 8-membered hydrocarbon ring; R represents a substituent; r represents an integer of 0 to 4; and when substituent R is plural, each R may be the same as or different from every other R.