1055025-20-1Relevant academic research and scientific papers
ANTHRAPYRIDONE COMPOUND OR SALT THEREOF, MAGENTA INK COMPOSITION CONTAINING THE ANTHRAPYRIDONE COMPOUND, AND COLORED BODY
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Page/Page column 17, (2010/11/04)
The present invention relates to a novel anthrapyridone compound represented by the following formula (1) or a salt thereof: [wherein, R1 represents a hydrogen atom, an alkyl group or the like, R2 represents a hydrogen atom or a methoxy group and R3 represents an unsubstituted or substituted C5-C12 alkyl group, an unsubstituted or substituted aryl group, or an unsubstituted or substituted heteroaryl group, respectively; and with regard to the substitution positions of -SO2R3 and -SO3H whose substitution position are not specified and the both of which the benzene ring has thereon, one of their substitution positions is the para-position and the other thereof is the ortho-position to the substitution position of the nitrogen atom by which said benzene ring is substituted], and the compound of the present invention or a salt thereof has a hue which possesses high vividness suitable for inkjet recording, and provides a magenta coloring matter having higher fastnesses on recorded matter and excellent storage stability.
