Patent ID: 8394186

Claim:
A porphyrazine coloring matter represented by the following formula (1) or a salt thereof: wherein: the rings A to D each independently represent a benzene ring or a 6-membered ring nitrogen-containing heteroaromatic ring fused to the porphyrazine ring, the number of the nitrogen-containing heteroaromatic rings in the rings A to D is more than 0.00 and less than 1.00 as an average value, and the rest are benzene rings, E represents alkylene, X is an anilino group or a naphthylamino group having, as a substituent, at least one group selected from the group consisting of a sulfo group, a carboxy group and a phosphono group, and said anilino or naphthylamino group may be further substituted with at least one group selected from the group consisting of a sulfo group, a carboxy group, a phosphono group, a sulfamoyl group, a carbamoyl group, a hydroxy group, an alkoxy group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an acetylamino group, an ureide group, an alkyl group, a nitro group, a cyano group, a halogen atom, an alkylsulfonyl group, an alkylthio group, an aryloxy group and a heterocyclic group, Y represents an amino group; a hydroxy group; a mono- or dialkylamino group or a nitrogen-containing heterocyclic group which may have 1 kind or 2 or more kinds of substituents selected from the group consisting of a sulfo group, a carboxy group, a phosphono group, a sulfamoyl group, a carbamoyl group, a hydroxy group, an alkoxy group, an amino group, a mono- or dialkylamino group, a mono- or diarylamino group, an acetylamino group, an ureide group, an alkyl group, a nitro group, a cyano group, a halogen atom, an alkylsulfonyl group, an alkylthio group, an aryloxy group and a heterocyclic group, for the combination of X and Y, a combination where Y is an amino group or a hydroxy group and X is a substituted anilino group is not included, b represents the substitution number of the unsubstituted sulfamoyl group and is 0.00 or more and less than 3.90 as an average value, c represents the substitution number of the substituted sulfamoyl group and is 0.10 or more and less than 4.00 as an average value, and the sum of b and c is more than 3.00 and less than 4.00 as an average value.