MONOAZO COMPOUND, INK COMPOSITION, AND COLORED OBJECT

摘要

A monoazo compound represented by the following formula (1): (1) (wherein R<SUB>1</SUB> represents hydrogen or C<SUB>1-4</SUB> alkyl; Y<SUB>1</SUB> represents carboxy, methyl, or phenyl; and Y<SUB>2</SUB> represents hydroxy or amino) or a salt of the compound; an ink composition containing the compound or salt; and a colored object dyed with any of these. The ink composition containing the compound has high storage stability. A print obtained through recording with the compound has high clarity and is high in fastness regarding moisture resistance, ozone resistance, xenon-lamp resistance, etc.