| 摘要 |
The present invention relates to a water-soluble azo compound represented by the following formula (1) or a salt thereof: wherein, R represents an alkyl group having 1 to 4 carbon atoms, n represents an integer number of 1 or 2, x represents an integer number of 2 to 4 and y represents an integer number of 2 to 11, respectively and an ink composition containing this; and provides a yellow coloring matter which has a highly vivid hue suitable for inkjet recording, gives various high fastnesses to recorded matter and is excellent in storage stability when prepared as an ink composition, and an ink composition containing this.
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