Dye for optical recording medium

An optical recording medium dye, wherein the optical recording medium dye is an azo type compound that chelates with a metal, and the azo type compound has a structure of:

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• wherein A3 and B3 are residues forming a heterocyclic ring derivative together with a carbon atom and a nitrogen atom, and the heterocyclic ring derivative is selected from the group consisting of derivatives of an imidazole group, a thiazole group, an oxazole group, a benzothiazole group, a pyridobenaothiazole group, a pyridine group, a pyridazine group, a pyrimidine group, a pyrazine group, a triazine group, a pyridobenaothiazole group, a pyrazole group, wherein the derivatives of the imidazole group, the thiazole group, the oxazole group, the benzothiazole group, the pyridobenaothiazole group, the pyridine group, the pyridazine group, the pyrimidine group, the pyrazine group, the triazine group, the pyridobenaothiazole group, the pyrazole group contains no or a substituent, wherein the substituent is selected from the group consisting of a halogen atom, a nitro group, a cyano group, an amino group, a formyl group, a hydroxyl group, a carboxyl group, an alkylamino group, a substituted C1-15 straight chain alkyl group, an unsubstituted C1-15 straight chain alkyl group, a branched alkyl group, a cycloalkyl group, an alkoxy group, an alkyl carbonyl group, a straight chain alkenyl group, a branched alkenyl group, a cylcoalkenyl group, a hydroxyalkyl group, an alkoxycarbonyl group, an alkoxycarbonylallyl group, an alkylthio group, an alkylsulfonyl group, an aryl group or a heterocyclic group.