- A method for producing an azo compound
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A method for producing an azo derivative, comprising: (a) a step for allowing a diazotization agent, an acid or mixed acid having a Hammett acidity function Ho of -1.00 or less and an amino compound to undergo the reaction; and (b) a step for mixing a dia
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Page/Page column 27-28; 37
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- DYE, INK, INK JET RECORDING METHOD, INK SHEET, COLOR TONER AND COLOR FILTER
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To provide a dye which has a good hue, which can form an image showing a high fastness under various using conditions and environmental conditions, and which is particularly suited for an ink, the dye is represents by formula (1): wherein R1 and R2 each independently represents a monovalent group, Z represents a nitrogen atom or a carbon atom to which a hydrogen atom or a monovalent group is bonded, and M represents a hydrogen atom or a cation, provided that the dye has two azo groups.
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Page/Page column 44
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