Anthrapyridone compound, aqueous magenta ink composition and inkjet recording method

An anthrapyridone compound represented by the following formula (1):

• {wherein R1 represents a hydrogen atom, an alkyl group, a hydroxy lower alkyl group, a cyclohexyl group, mono- or dialkylaminoalkyl group or a cyano lower alkyl group;
• X represents an anilino group which may be substituted with a sulfonic acid group, a methoxy group, an anilino group and a phenoxy group;
• methyl-sulfoanilino group, a methoxy-sulfoanilino group, a carboxy-sulfoanilino group, a carboxy-hydroxyanilino group, a naphthylamino group which may be substituted with a sulfonic acid group, mono- or dialkylamino group which may be substituted with a sulfonic acid group, a carboxyl group and a hydroxyl group, an aralkylamino group, a cycloalkylamino group, a phenoxy group which may be substituted with a sulfonic acid group, a carboxyl group, an acetylamino group, an amino group, a hydroxyl group, a phenoxy group, or a phenyl group, a monoalkylaminoalkylamino group, a dialkylaminoalkylamino group;
• a hydroxyl group or an amino group;
• and
• Y represents a chlorine atom, a hydroxyl group, an amino group, mono- or dialkylamino group (which may have a substituent selected from the group consisting of a sulfonic acid group, a carboxyl group and a hydroxyl group on an alkyl group), or a morpholino group},
• or the salt thereof.