Patent ID: 8535431

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 nitrogen-containing heteroaromatic ring fused to a porphyrazine ring, the number of the nitrogen-containing heteroaromatic ring is more than 0.00 and less than 1.00 as an average value, and the rest are benzene rings; E represents alkylene; X and Y are each independently an anilino or naphthylamino group having a sulfo group, a carboxy group or a phosphono group as a substituent; in addition, said anilino or naphthylamino group may be substituted by 1 kind or 2 or more kinds of groups 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; b is 0.00 or more and less than 3.90 as an average value; c 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, provided that the number of the nitrogen-containing heteroaromatic ring is more than 0.0 and less than 0.5 as an average value when X and Y are each independently an anilino group having 1 to 3 carboxy groups as a substituent, and b is 0 or more and up to 3.4 as an average value; c is 0.1 or more and up to 3.5 as an average value; and the sum of b and c is from 1.0 to 3.5.