Patent ID: 9382426
Filing Date: 2016-07-05
CPC Classification: B41M,C07D,C09B,C09D,G02B

Claim Text:
1. A water-insoluble coloring compound having a structure represented by Formula (1): in Formula (1), both R 1 and R 2 represent a 2-ethylehexyl group; R 3 represents an alkyl group, an aryl group, or an amino group; R 4 represents a hydrogen atom, a cyano group, a carbamoyl group, a carboxylic acid ester group, or a carboxylic acid amide group; R 5 and R 6 each independently represent a hydrogen atom, an alkyl group, or an acyl group or R 5 and R 6 bind to each other to form a ring; and A represents a carbonyl group.